64954764832 has 24 divisors (see below), whose sum is σ = 127920246300. Its totient is φ = 32467083264.

The previous prime is 64954764829. The next prime is 64954764859. The reversal of 64954764832 is 23846745946.

64954764832 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 47679342736 + 17275422096 = 218356^2 + 131436^2 .

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, 218857 + ... + 421672.

Almost surely, 2^64954764832 is an apocalyptic number.

It is an amenable number.

64954764832 is a deficient number, since it is larger than the sum of its proper divisors (62965481468).

64954764832 is a wasteful number, since it uses less digits than its factorization.

64954764832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643708 (or 643700 counting only the distinct ones).

The product of its digits is 34836480, while the sum is 58.

The spelling of 64954764832 in words is "sixty-four billion, nine hundred fifty-four million, seven hundred sixty-four thousand, eight hundred thirty-two".