311617188426979 has 2 divisors, whose sum is σ = 311617188426980. Its totient is φ = 311617188426978.

The previous prime is 311617188426953. The next prime is 311617188427001. The reversal of 311617188426979 is 979624881716113.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 311617188426979 - 2³⁷ = 311479749473507 is a prime.

It is not a weakly prime, because it can be changed into another prime (311617188486979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155808594213489 + 155808594213490.

It is an arithmetic number, because the mean of its divisors is an integer number (155808594213490).

Almost surely, 2^{311617188426979} is an apocalyptic number.

311617188426979 is a deficient number, since it is larger than the sum of its proper divisors (1).

311617188426979 is an equidigital number, since it uses as much as digits as its factorization.

311617188426979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 219469824, while the sum is 73.

The spelling of 311617188426979 in words is "three hundred eleven trillion, six hundred seventeen billion, one hundred eighty-eight million, four hundred twenty-six thousand, nine hundred seventy-nine".