80072887931 has 2 divisors, whose sum is σ = 80072887932. Its totient is φ = 80072887930.

The previous prime is 80072887919. The next prime is 80072887991. The reversal of 80072887931 is 13978827008.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80072887931 is a prime.

It is a super-2 number, since 2×80072887931² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (80072887901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40036443965 + 40036443966.

It is an arithmetic number, because the mean of its divisors is an integer number (40036443966).

Almost surely, 2^80072887931 is an apocalyptic number.

80072887931 is a deficient number, since it is larger than the sum of its proper divisors (1).

80072887931 is an equidigital number, since it uses as much as digits as its factorization.

80072887931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1354752, while the sum is 53.

The spelling of 80072887931 in words is "eighty billion, seventy-two million, eight hundred eighty-seven thousand, nine hundred thirty-one".