31922856359 has 2 divisors, whose sum is σ = 31922856360. Its totient is φ = 31922856358.

The previous prime is 31922856353. The next prime is 31922856401. The reversal of 31922856359 is 95365822913.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31922856359 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31922856359.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31922856353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15961428179 + 15961428180.

It is an arithmetic number, because the mean of its divisors is an integer number (15961428180).

Almost surely, 2^31922856359 is an apocalyptic number.

31922856359 is a deficient number, since it is larger than the sum of its proper divisors (1).

31922856359 is an equidigital number, since it uses as much as digits as its factorization.

31922856359 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3499200, while the sum is 53.

The spelling of 31922856359 in words is "thirty-one billion, nine hundred twenty-two million, eight hundred fifty-six thousand, three hundred fifty-nine".