2761404780 has 96 divisors (see below), whose sum is σ = 7864758720. Its totient is φ = 723824640.

The previous prime is 2761404773. The next prime is 2761404787. The reversal of 2761404780 is 874041672.

2761404780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2761404773) and next prime (2761404787).

It is not an unprimeable number, because it can be changed into a prime (2761404787) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 965112 + ... + 967968.

It is an arithmetic number, because the mean of its divisors is an integer number (81924570).

Almost surely, 2^2761404780 is an apocalyptic number.

2761404780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2761404780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3932379360).

2761404780 is an abundant number, since it is smaller than the sum of its proper divisors (5103353940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2761404780 is a wasteful number, since it uses less digits than its factorization.

2761404780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3139 (or 3137 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 39.

The square root of 2761404780 is about 52549.0702106136. The cubic root of 2761404780 is about 1402.9537602874.

The spelling of 2761404780 in words is "two billion, seven hundred sixty-one million, four hundred four thousand, seven hundred eighty".