12670785931 has 2 divisors, whose sum is σ = 12670785932. Its totient is φ = 12670785930.

The previous prime is 12670785913. The next prime is 12670785971. The reversal of 12670785931 is 13958707621.

It is a happy number.

Together with previous prime (12670785913) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12670785931 - 2¹¹ = 12670783883 is a prime.

It is a super-2 number, since 2×12670785931² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12670785971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6335392965 + 6335392966.

It is an arithmetic number, because the mean of its divisors is an integer number (6335392966).

Almost surely, 2^12670785931 is an apocalyptic number.

12670785931 is a deficient number, since it is larger than the sum of its proper divisors (1).

12670785931 is an equidigital number, since it uses as much as digits as its factorization.

12670785931 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 635040, while the sum is 49.

The spelling of 12670785931 in words is "twelve billion, six hundred seventy million, seven hundred eighty-five thousand, nine hundred thirty-one".