64075469872 has 40 divisors (see below), whose sum is σ = 127572018896. Its totient is φ = 31154616576.

The previous prime is 64075469851. The next prime is 64075469959. The reversal of 64075469872 is 27896457046.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1076278 + ... + 1134250.

Almost surely, 2^64075469872 is an apocalyptic number.

It is an amenable number.

64075469872 is a deficient number, since it is larger than the sum of its proper divisors (63496549024).

64075469872 is a wasteful number, since it uses less digits than its factorization.

64075469872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59885 (or 59879 counting only the distinct ones).

The product of its (nonzero) digits is 20321280, while the sum is 58.

The spelling of 64075469872 in words is "sixty-four billion, seventy-five million, four hundred sixty-nine thousand, eight hundred seventy-two".