64517268 has 24 divisors (see below), whose sum is σ = 150703168. Its totient is φ = 21482496.

The previous prime is 64517263. The next prime is 64517279. The reversal of 64517268 is 86271546.

64517268 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 not an unprimeable number, because it can be changed into a prime (64517263) by changing a digit.

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, 11505 + ... + 16167.

Almost surely, 2^64517268 is an apocalyptic number.

It is an amenable number.

64517268 is an abundant number, since it is smaller than the sum of its proper divisors (86185900).

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

64517268 is a wasteful number, since it uses less digits than its factorization.

64517268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5823 (or 5821 counting only the distinct ones).

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

The square root of 64517268 is about 8032.2641888822. The cubic root of 64517268 is about 401.0747513542.

The spelling of 64517268 in words is "sixty-four million, five hundred seventeen thousand, two hundred sixty-eight".