64711870112 has 24 divisors (see below), whose sum is σ = 127442668500. Its totient is φ = 32345478144.

The previous prime is 64711870039. The next prime is 64711870151. The reversal of 64711870112 is 21107811746.

It can be written as a sum of positive squares in 2 ways, for example, as 61979089936 + 2732780176 = 248956^2 + 52276^2 .

It is a super-2 number, since 2×64711870112² (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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 225737 + ... + 424712.

Almost surely, 2^64711870112 is an apocalyptic number.

It is an amenable number.

64711870112 is a deficient number, since it is larger than the sum of its proper divisors (62730798388).

64711870112 is a wasteful number, since it uses less digits than its factorization.

64711870112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653568 (or 653560 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 38.

The spelling of 64711870112 in words is "sixty-four billion, seven hundred eleven million, eight hundred seventy thousand, one hundred twelve".