396800636137 has 2 divisors, whose sum is σ = 396800636138. Its totient is φ = 396800636136.

The previous prime is 396800636123. The next prime is 396800636207. The reversal of 396800636137 is 731636008693.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 252828958041 + 143971678096 = 502821^2 + 379436^2 .

It is a cyclic number.

It is not a de Polignac number, because 396800636137 - 2²⁷ = 396666418409 is a prime.

It is not a weakly prime, because it can be changed into another prime (396800636107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198400318068 + 198400318069.

It is an arithmetic number, because the mean of its divisors is an integer number (198400318069).

Almost surely, 2^396800636137 is an apocalyptic number.

It is an amenable number.

396800636137 is a deficient number, since it is larger than the sum of its proper divisors (1).

396800636137 is an equidigital number, since it uses as much as digits as its factorization.

396800636137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2939328, while the sum is 52.

The spelling of 396800636137 in words is "three hundred ninety-six billion, eight hundred million, six hundred thirty-six thousand, one hundred thirty-seven".