64877512 has 32 divisors (see below), whose sum is σ = 141652800. Its totient is φ = 27278784.

The previous prime is 64877489. The next prime is 64877551. The reversal of 64877512 is 21577846.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7962 + ... + 13897.

It is an arithmetic number, because the mean of its divisors is an integer number (4426650).

Almost surely, 2^64877512 is an apocalyptic number.

It is an amenable number.

64877512 is an abundant number, since it is smaller than the sum of its proper divisors (76775288).

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

64877512 is a wasteful number, since it uses less digits than its factorization.

64877512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21925 (or 21921 counting only the distinct ones).

The product of its digits is 94080, while the sum is 40.

The square root of 64877512 is about 8054.6577829229. The cubic root of 64877512 is about 401.8198577380.

The spelling of 64877512 in words is "sixty-four million, eight hundred seventy-seven thousand, five hundred twelve".