389475863139 has 16 divisors (see below), whose sum is σ = 566529513984. Its totient is φ = 236037991200.

The previous prime is 389475863087. The next prime is 389475863239. The reversal of 389475863139 is 931368574983.

It is not a de Polignac number, because 389475863139 - 2¹¹ = 389475861091 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 389475863139.

It is not an unprimeable number, because it can be changed into a prime (389475863239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 877129 + ... + 1244309.

It is an arithmetic number, because the mean of its divisors is an integer number (35408094624).

Almost surely, 2^389475863139 is an apocalyptic number.

389475863139 is a deficient number, since it is larger than the sum of its proper divisors (177053650845).

389475863139 is a wasteful number, since it uses less digits than its factorization.

389475863139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399338.

The product of its digits is 117573120, while the sum is 66.

The spelling of 389475863139 in words is "three hundred eighty-nine billion, four hundred seventy-five million, eight hundred sixty-three thousand, one hundred thirty-nine".