12642802831 has 2 divisors, whose sum is σ = 12642802832. Its totient is φ = 12642802830.

The previous prime is 12642802813. The next prime is 12642802873. The reversal of 12642802831 is 13820824621.

It is a happy number.

Together with previous prime (12642802813) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is an emirp because it is prime and its reverse (13820824621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12642802831 - 2⁷ = 12642802703 is a prime.

It is a super-2 number, since 2×12642802831² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12642832831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6321401415 + 6321401416.

It is an arithmetic number, because the mean of its divisors is an integer number (6321401416).

Almost surely, 2^12642802831 is an apocalyptic number.

12642802831 is a deficient number, since it is larger than the sum of its proper divisors (1).

12642802831 is an equidigital number, since it uses as much as digits as its factorization.

12642802831 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36864, while the sum is 37.

The spelling of 12642802831 in words is "twelve billion, six hundred forty-two million, eight hundred two thousand, eight hundred thirty-one".