12570513768 has 80 divisors (see below), whose sum is σ = 36423238500. Its totient is φ = 4045676544.

The previous prime is 12570513763. The next prime is 12570513811. The reversal of 12570513768 is 86731507521.

It is a happy number.

12570513768 is a `hidden beast` number, since 1 + 2 + 5 + 70 + 513 + 7 + 68 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 12330325764 + 240188004 = 111042^2 + 15498^2 .

It is not an unprimeable number, because it can be changed into a prime (12570513763) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 315673 + ... + 353256.

Almost surely, 2^12570513768 is an apocalyptic number.

12570513768 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12570513768 is an abundant number, since it is smaller than the sum of its proper divisors (23852724732).

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

12570513768 is a wasteful number, since it uses less digits than its factorization.

12570513768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668976 (or 668963 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 45.

The spelling of 12570513768 in words is "twelve billion, five hundred seventy million, five hundred thirteen thousand, seven hundred sixty-eight".