64276780 has 12 divisors (see below), whose sum is σ = 134981280. Its totient is φ = 25710704.

The previous prime is 64276763. The next prime is 64276781. The reversal of 64276780 is 8767246.

64276780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (64276781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1606900 + ... + 1606939.

It is an arithmetic number, because the mean of its divisors is an integer number (11248440).

Almost surely, 2^64276780 is an apocalyptic number.

It is an amenable number.

64276780 is an abundant number, since it is smaller than the sum of its proper divisors (70704500).

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

64276780 is a wasteful number, since it uses less digits than its factorization.

64276780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3213848 (or 3213846 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 40.

The square root of 64276780 is about 8017.2800874112. The cubic root of 64276780 is about 400.5757957504.

It can be divided in two parts, 64276 and 780, that added together give a palindrome (65056).

The spelling of 64276780 in words is "sixty-four million, two hundred seventy-six thousand, seven hundred eighty".