389016685831 has 2 divisors, whose sum is σ = 389016685832. Its totient is φ = 389016685830.

The previous prime is 389016685817. The next prime is 389016685933. The reversal of 389016685831 is 138586610983.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 389016685831 - 2³⁷ = 251577732359 is a prime.

It is a super-2 number, since 2×389016685831² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (389016685231) 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, 194508342915 + 194508342916.

It is an arithmetic number, because the mean of its divisors is an integer number (194508342916).

Almost surely, 2^389016685831 is an apocalyptic number.

389016685831 is a deficient number, since it is larger than the sum of its proper divisors (1).

389016685831 is an equidigital number, since it uses as much as digits as its factorization.

389016685831 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7464960, while the sum is 58.

The spelling of 389016685831 in words is "three hundred eighty-nine billion, sixteen million, six hundred eighty-five thousand, eight hundred thirty-one".