389296318913 has 4 divisors (see below), whose sum is σ = 402720329940. Its totient is φ = 375872307888.

The previous prime is 389296318909. The next prime is 389296318937. The reversal of 389296318913 is 319813692983.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 197747417344 + 191548901569 = 444688^2 + 437663^2 .

It is a cyclic number.

It is not a de Polignac number, because 389296318913 - 2² = 389296318909 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (389296318013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6712005470 + ... + 6712005527.

It is an arithmetic number, because the mean of its divisors is an integer number (100680082485).

Almost surely, 2^389296318913 is an apocalyptic number.

It is an amenable number.

389296318913 is a deficient number, since it is larger than the sum of its proper divisors (13424011027).

389296318913 is a wasteful number, since it uses less digits than its factorization.

389296318913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13424011026.

The product of its digits is 15116544, while the sum is 62.

The spelling of 389296318913 in words is "three hundred eighty-nine billion, two hundred ninety-six million, three hundred eighteen thousand, nine hundred thirteen".