390883993672331 has 2 divisors, whose sum is σ = 390883993672332. Its totient is φ = 390883993672330.

The previous prime is 390883993672279. The next prime is 390883993672369. The reversal of 390883993672331 is 133276399388093.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 390883993672331 - 2⁶ = 390883993672267 is a prime.

It is a super-2 number, since 2×390883993672331² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (390883993672391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 195441996836165 + 195441996836166.

It is an arithmetic number, because the mean of its divisors is an integer number (195441996836166).

Almost surely, 2^{390883993672331} is an apocalyptic number.

390883993672331 is a deficient number, since it is larger than the sum of its proper divisors (1).

390883993672331 is an equidigital number, since it uses as much as digits as its factorization.

390883993672331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 952342272, while the sum is 74.

The spelling of 390883993672331 in words is "three hundred ninety trillion, eight hundred eighty-three billion, nine hundred ninety-three million, six hundred seventy-two thousand, three hundred thirty-one".