64817267612 has 12 divisors (see below), whose sum is σ = 113839715640. Its totient is φ = 32291634576.

The previous prime is 64817267551. The next prime is 64817267623. The reversal of 64817267612 is 21676271846.

64817267612 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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29248562 + ... + 29250777.

It is an arithmetic number, because the mean of its divisors is an integer number (9486642970).

Almost surely, 2^64817267612 is an apocalyptic number.

It is an amenable number.

64817267612 is a deficient number, since it is larger than the sum of its proper divisors (49022448028).

64817267612 is a wasteful number, since it uses less digits than its factorization.

64817267612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58499620 (or 58499618 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 50.

The spelling of 64817267612 in words is "sixty-four billion, eight hundred seventeen million, two hundred sixty-seven thousand, six hundred twelve".