64872512 has 28 divisors (see below), whose sum is σ = 134331456. Its totient is φ = 31025280.

The previous prime is 64872499. The next prime is 64872529. The reversal of 64872512 is 21527846.

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, 20564 + ... + 23507.

It is an arithmetic number, because the mean of its divisors is an integer number (4797552).

Almost surely, 2^64872512 is an apocalyptic number.

It is an amenable number.

64872512 is an abundant number, since it is smaller than the sum of its proper divisors (69458944).

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

64872512 is a wasteful number, since it uses less digits than its factorization.

64872512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44106 (or 44096 counting only the distinct ones).

The product of its digits is 26880, while the sum is 35.

The square root of 64872512 is about 8054.3473975239. The cubic root of 64872512 is about 401.8095349474.

The spelling of 64872512 in words is "sixty-four million, eight hundred seventy-two thousand, five hundred twelve".