64376575812 has 18 divisors (see below), whose sum is σ = 162729677838. Its totient is φ = 21458858592.

The previous prime is 64376575763. The next prime is 64376575831. The reversal of 64376575812 is 21857567346.

64376575812 is a `hidden beast` number, since 6 + 4 + 3 + 7 + 6 + 57 + 581 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 51721675776 + 12654900036 = 227424^2 + 112494^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 894119073 + ... + 894119144.

Almost surely, 2^64376575812 is an apocalyptic number.

It is an amenable number.

64376575812 is an abundant number, since it is smaller than the sum of its proper divisors (98353102026).

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

64376575812 is a wasteful number, since it uses less digits than its factorization.

64376575812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1788238227 (or 1788238222 counting only the distinct ones).

The product of its digits is 8467200, while the sum is 54.

The spelling of 64376575812 in words is "sixty-four billion, three hundred seventy-six million, five hundred seventy-five thousand, eight hundred twelve".