392636493961 has 2 divisors, whose sum is σ = 392636493962. Its totient is φ = 392636493960.

The previous prime is 392636493929. The next prime is 392636494009. The reversal of 392636493961 is 169394636293.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 252119473225 + 140517020736 = 502115^2 + 374856^2 .

It is a cyclic number.

It is not a de Polignac number, because 392636493961 - 2⁵ = 392636493929 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 392636493961.

It is not a weakly prime, because it can be changed into another prime (392636494961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 196318246980 + 196318246981.

It is an arithmetic number, because the mean of its divisors is an integer number (196318246981).

Almost surely, 2^392636493961 is an apocalyptic number.

It is an amenable number.

392636493961 is a deficient number, since it is larger than the sum of its proper divisors (1).

392636493961 is an equidigital number, since it uses as much as digits as its factorization.

392636493961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34012224, while the sum is 61.

The spelling of 392636493961 in words is "three hundred ninety-two billion, six hundred thirty-six million, four hundred ninety-three thousand, nine hundred sixty-one".