2642801894 has 24 divisors (see below), whose sum is σ = 4103203104. Its totient is φ = 1276592400.

The previous prime is 2642801893. The next prime is 2642801933. The reversal of 2642801894 is 4981082462.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2642801891) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2146259 + ... + 2147489.

It is an arithmetic number, because the mean of its divisors is an integer number (170966796).

Almost surely, 2^2642801894 is an apocalyptic number.

2642801894 is a deficient number, since it is larger than the sum of its proper divisors (1460401210).

2642801894 is a wasteful number, since it uses less digits than its factorization.

2642801894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2412 (or 2381 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 44.

The square root of 2642801894 is about 51408.1889780218. The cubic root of 2642801894 is about 1382.5734194250.

The spelling of 2642801894 in words is "two billion, six hundred forty-two million, eight hundred one thousand, eight hundred ninety-four".