64120315364 has 24 divisors (see below), whose sum is σ = 129057458880. Its totient is φ = 27305100576.

The previous prime is 64120315313. The next prime is 64120315367. The reversal of 64120315364 is 46351302146.

It is a super-2 number, since 2×64120315364² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64120315367) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7288634 + ... + 7297425.

It is an arithmetic number, because the mean of its divisors is an integer number (5377394120).

Almost surely, 2^64120315364 is an apocalyptic number.

It is an amenable number.

64120315364 is an abundant number, since it is smaller than the sum of its proper divisors (64937143516).

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

64120315364 is a wasteful number, since it uses less digits than its factorization.

64120315364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14586227 (or 14586225 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 35.

The spelling of 64120315364 in words is "sixty-four billion, one hundred twenty million, three hundred fifteen thousand, three hundred sixty-four".