7931131245979 has 2 divisors, whose sum is σ = 7931131245980. Its totient is φ = 7931131245978.

The previous prime is 7931131245883. The next prime is 7931131246007. The reversal of 7931131245979 is 9795421311397.

It is a strong prime.

It is an emirp because it is prime and its reverse (9795421311397) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7931131245979 - 2¹³ = 7931131237787 is a prime.

It is not a weakly prime, because it can be changed into another prime (7931131045979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3965565622989 + 3965565622990.

It is an arithmetic number, because the mean of its divisors is an integer number (3965565622990).

Almost surely, 2^{7931131245979} is an apocalyptic number.

7931131245979 is a deficient number, since it is larger than the sum of its proper divisors (1).

7931131245979 is an equidigital number, since it uses as much as digits as its factorization.

7931131245979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12859560, while the sum is 61.

The spelling of 7931131245979 in words is "seven trillion, nine hundred thirty-one billion, one hundred thirty-one million, two hundred forty-five thousand, nine hundred seventy-nine".