64756912 has 40 divisors (see below), whose sum is σ = 137491200. Its totient is φ = 29302080.

The previous prime is 64756889. The next prime is 64756933. The reversal of 64756912 is 21965746.

64756912 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 45589 + ... + 46987.

It is an arithmetic number, because the mean of its divisors is an integer number (3437280).

Almost surely, 2^64756912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64756912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68745600).

64756912 is an abundant number, since it is smaller than the sum of its proper divisors (72734288).

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

64756912 is a wasteful number, since it uses less digits than its factorization.

64756912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1681 (or 1675 counting only the distinct ones).

The product of its digits is 90720, while the sum is 40.

The square root of 64756912 is about 8047.1679490365. The cubic root of 64756912 is about 401.5707239919.

The spelling of 64756912 in words is "sixty-four million, seven hundred fifty-six thousand, nine hundred twelve".