31960930609 has 2 divisors, whose sum is σ = 31960930610. Its totient is φ = 31960930608.

The previous prime is 31960930549. The next prime is 31960930621. The reversal of 31960930609 is 90603906913.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31816570384 + 144360225 = 178372^2 + 12015^2 .

It is a cyclic number.

It is not a de Polignac number, because 31960930609 - 2⁹ = 31960930097 is a prime.

It is a super-2 number, since 2×31960930609² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (31960930649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15980465304 + 15980465305.

It is an arithmetic number, because the mean of its divisors is an integer number (15980465305).

Almost surely, 2^31960930609 is an apocalyptic number.

It is an amenable number.

31960930609 is a deficient number, since it is larger than the sum of its proper divisors (1).

31960930609 is an equidigital number, since it uses as much as digits as its factorization.

31960930609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 236196, while the sum is 46.

The spelling of 31960930609 in words is "thirty-one billion, nine hundred sixty million, nine hundred thirty thousand, six hundred nine".