389475863239 has 2 divisors, whose sum is σ = 389475863240. Its totient is φ = 389475863238.

The previous prime is 389475863087. The next prime is 389475863251. The reversal of 389475863239 is 932368574983.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 389475863239 - 2¹⁷ = 389475732167 is a prime.

It is a super-2 number, since 2×389475863239² (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 (389475863839) 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, 194737931619 + 194737931620.

It is an arithmetic number, because the mean of its divisors is an integer number (194737931620).

Almost surely, 2^389475863239 is an apocalyptic number.

389475863239 is a deficient number, since it is larger than the sum of its proper divisors (1).

389475863239 is an equidigital number, since it uses as much as digits as its factorization.

389475863239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 235146240, while the sum is 67.

The spelling of 389475863239 in words is "three hundred eighty-nine billion, four hundred seventy-five million, eight hundred sixty-three thousand, two hundred thirty-nine".