12570513681 has 32 divisors (see below), whose sum is σ = 19426147200. Its totient is φ = 7156961280.

The previous prime is 12570513653. The next prime is 12570513689. The reversal of 12570513681 is 18631507521.

It is not a de Polignac number, because 12570513681 - 2⁵ = 12570513649 is a prime.

It is a super-2 number, since 2×12570513681² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12570513689) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 142096 + ... + 212913.

It is an arithmetic number, because the mean of its divisors is an integer number (607067100).

Almost surely, 2^12570513681 is an apocalyptic number.

12570513681 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12570513681 is a deficient number, since it is larger than the sum of its proper divisors (6855633519).

12570513681 is a wasteful number, since it uses less digits than its factorization.

12570513681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355089.

The product of its (nonzero) digits is 50400, while the sum is 39.

The spelling of 12570513681 in words is "twelve billion, five hundred seventy million, five hundred thirteen thousand, six hundred eighty-one".