64770311364 has 48 divisors (see below), whose sum is σ = 173547252480. Its totient is φ = 18594347040.

The previous prime is 64770311341. The next prime is 64770311371. The reversal of 64770311364 is 46311307746.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12910234 + ... + 12915249.

It is an arithmetic number, because the mean of its divisors is an integer number (3615567760).

Almost surely, 2^64770311364 is an apocalyptic number.

It is an amenable number.

64770311364 is an abundant number, since it is smaller than the sum of its proper divisors (108776941116).

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

64770311364 is a wasteful number, since it uses less digits than its factorization.

64770311364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25825520 (or 25825518 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 42.

It can be divided in two parts, 647 and 70311364, that added together give a triangular number (70312011 = T₁₁₈₅₈).

The spelling of 64770311364 in words is "sixty-four billion, seven hundred seventy million, three hundred eleven thousand, three hundred sixty-four".