64757325904 has 40 divisors (see below), whose sum is σ = 126328289472. Its totient is φ = 32156766720.

The previous prime is 64757325901. The next prime is 64757325911. The reversal of 64757325904 is 40952375746.

It is a happy number.

It is a super-2 number, since 2×64757325904² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64757325901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3932472 + ... + 3948904.

Almost surely, 2^64757325904 is an apocalyptic number.

It is an amenable number.

64757325904 is a deficient number, since it is larger than the sum of its proper divisors (61570963568).

64757325904 is a wasteful number, since it uses less digits than its factorization.

64757325904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18115 (or 18109 counting only the distinct ones).

The product of its (nonzero) digits is 6350400, while the sum is 52.

The spelling of 64757325904 in words is "sixty-four billion, seven hundred fifty-seven million, three hundred twenty-five thousand, nine hundred four".