12724888931 has 8 divisors (see below), whose sum is σ = 12966052080. Its totient is φ = 12485532672.

The previous prime is 12724888927. The next prime is 12724888951. The reversal of 12724888931 is 13988842721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12724888931 - 2² = 12724888927 is a prime.

It is a super-2 number, since 2×12724888931² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12724888901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 437501 + ... + 465678.

It is an arithmetic number, because the mean of its divisors is an integer number (1620756510).

Almost surely, 2^12724888931 is an apocalyptic number.

12724888931 is a deficient number, since it is larger than the sum of its proper divisors (241163149).

12724888931 is an equidigital number, since it uses as much as digits as its factorization.

12724888931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 903445.

The product of its digits is 1548288, while the sum is 53.

The spelling of 12724888931 in words is "twelve billion, seven hundred twenty-four million, eight hundred eighty-eight thousand, nine hundred thirty-one".