64901937328 has 20 divisors (see below), whose sum is σ = 126591451200. Its totient is φ = 32233175744.

The previous prime is 64901937307. The next prime is 64901937361. The reversal of 64901937328 is 82373910946.

It is a super-2 number, since 2×64901937328² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13609600 + ... + 13614367.

It is an arithmetic number, because the mean of its divisors is an integer number (6329572560).

Almost surely, 2^64901937328 is an apocalyptic number.

It is an amenable number.

64901937328 is a deficient number, since it is larger than the sum of its proper divisors (61689513872).

64901937328 is a wasteful number, since it uses less digits than its factorization.

64901937328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27224124 (or 27224118 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 52.

The spelling of 64901937328 in words is "sixty-four billion, nine hundred one million, nine hundred thirty-seven thousand, three hundred twenty-eight".