64964725512 has 16 divisors (see below), whose sum is σ = 162411813840. Its totient is φ = 21654908496.

The previous prime is 64964725489. The next prime is 64964725591. The reversal of 64964725512 is 21552746946.

It is a happy number.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

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, 1353431758 + ... + 1353431805.

It is an arithmetic number, because the mean of its divisors is an integer number (10150738365).

Almost surely, 2^64964725512 is an apocalyptic number.

It is an amenable number.

64964725512 is an abundant number, since it is smaller than the sum of its proper divisors (97447088328).

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

64964725512 is a wasteful number, since it uses less digits than its factorization.

64964725512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2706863572 (or 2706863568 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 51.

The spelling of 64964725512 in words is "sixty-four billion, nine hundred sixty-four million, seven hundred twenty-five thousand, five hundred twelve".