64562568988 has 12 divisors (see below), whose sum is σ = 113304567600. Its totient is φ = 32189835392.

The previous prime is 64562568971. The next prime is 64562569003. The reversal of 64562568988 is 88986526546.

64562568988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22860688 + ... + 22863511.

It is an arithmetic number, because the mean of its divisors is an integer number (9442047300).

Almost surely, 2^64562568988 is an apocalyptic number.

It is an amenable number.

64562568988 is a deficient number, since it is larger than the sum of its proper divisors (48741998612).

64562568988 is a wasteful number, since it uses less digits than its factorization.

64562568988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45724556 (or 45724554 counting only the distinct ones).

The product of its digits is 199065600, while the sum is 67.

The spelling of 64562568988 in words is "sixty-four billion, five hundred sixty-two million, five hundred sixty-eight thousand, nine hundred eighty-eight".