12576844064 has 24 divisors (see below), whose sum is σ = 24766051968. Its totient is φ = 6287053120.

The previous prime is 12576844039. The next prime is 12576844099. The reversal of 12576844064 is 46044867521.

It is a happy number.

It is a super-2 number, since 2×12576844064² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115529 + ... + 196215.

It is an arithmetic number, because the mean of its divisors is an integer number (1031918832).

Almost surely, 2^12576844064 is an apocalyptic number.

It is an amenable number.

12576844064 is a deficient number, since it is larger than the sum of its proper divisors (12189207904).

12576844064 is an equidigital number, since it uses as much as digits as its factorization.

12576844064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85568 (or 85560 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 47.

The spelling of 12576844064 in words is "twelve billion, five hundred seventy-six million, eight hundred forty-four thousand, sixty-four".