64542912 has 56 divisors (see below), whose sum is σ = 195169536. Its totient is φ = 18440448.

The previous prime is 64542901. The next prime is 64542937. The reversal of 64542912 is 21924546.

It is a tau number, because it is divible by the number of its divisors (56).

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, 22668 + ... + 25355.

Almost surely, 2^64542912 is an apocalyptic number.

It is an amenable number.

64542912 is an abundant number, since it is smaller than the sum of its proper divisors (130626624).

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

64542912 is a wasteful number, since it uses less digits than its factorization.

64542912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48045 (or 48035 counting only the distinct ones).

The product of its digits is 17280, while the sum is 33.

The square root of 64542912 is about 8033.8603423261. The cubic root of 64542912 is about 401.1278833752.

The spelling of 64542912 in words is "sixty-four million, five hundred forty-two thousand, nine hundred twelve".