64578612 has 24 divisors (see below), whose sum is σ = 172209856. Its totient is φ = 18451008.

The previous prime is 64578593. The next prime is 64578637. The reversal of 64578612 is 21687546.

64578612 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 384313 + ... + 384480.

Almost surely, 2^64578612 is an apocalyptic number.

It is an amenable number.

64578612 is an abundant number, since it is smaller than the sum of its proper divisors (107631244).

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

64578612 is a wasteful number, since it uses less digits than its factorization.

64578612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768807 (or 768805 counting only the distinct ones).

The product of its digits is 80640, while the sum is 39.

The square root of 64578612 is about 8036.0818811159. The cubic root of 64578612 is about 401.2018270794.

The spelling of 64578612 in words is "sixty-four million, five hundred seventy-eight thousand, six hundred twelve".