64380808712 has 16 divisors (see below), whose sum is σ = 131688018000. Its totient is φ = 29264003920.

The previous prime is 64380808699. The next prime is 64380808757. The reversal of 64380808712 is 21780808346.

It is a super-2 number, since 2×64380808712² (a number of 22 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 365799962 + ... + 365800137.

It is an arithmetic number, because the mean of its divisors is an integer number (8230501125).

Almost surely, 2^64380808712 is an apocalyptic number.

It is an amenable number.

64380808712 is an abundant number, since it is smaller than the sum of its proper divisors (67307209288).

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

64380808712 is a wasteful number, since it uses less digits than its factorization.

64380808712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731600116 (or 731600112 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 47.

The spelling of 64380808712 in words is "sixty-four billion, three hundred eighty million, eight hundred eight thousand, seven hundred twelve".