331789394645 has 16 divisors (see below), whose sum is σ = 403245615360. Its totient is φ = 262033596864.

The previous prime is 331789394597. The next prime is 331789394687. The reversal of 331789394645 is 546493987133.

It is a cyclic number.

It is not a de Polignac number, because 331789394645 - 2³⁶ = 263069917909 is a prime.

It is a super-2 number, since 2×331789394645² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2839262 + ... + 2953808.

It is an arithmetic number, because the mean of its divisors is an integer number (25202850960).

Almost surely, 2^331789394645 is an apocalyptic number.

It is an amenable number.

331789394645 is a deficient number, since it is larger than the sum of its proper divisors (71456220715).

331789394645 is a wasteful number, since it uses less digits than its factorization.

331789394645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121964.

The product of its digits is 58786560, while the sum is 62.

The spelling of 331789394645 in words is "three hundred thirty-one billion, seven hundred eighty-nine million, three hundred ninety-four thousand, six hundred forty-five".