331964242731 has 32 divisors (see below), whose sum is σ = 564745132800. Its totient is φ = 190601475840.

The previous prime is 331964242711. The next prime is 331964242747. The reversal of 331964242731 is 137242469133.

331964242731 is a `hidden beast` number, since 3 + 3 + 196 + 4 + 2 + 427 + 31 = 666.

It is not a de Polignac number, because 331964242731 - 2⁹ = 331964242219 is a prime.

It is a super-2 number, since 2×331964242731² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (331964242711) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29408166 + ... + 29419451.

It is an arithmetic number, because the mean of its divisors is an integer number (17648285400).

Almost surely, 2^331964242731 is an apocalyptic number.

331964242731 is a deficient number, since it is larger than the sum of its proper divisors (232780890069).

331964242731 is a wasteful number, since it uses less digits than its factorization.

331964242731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58827656 (or 58827650 counting only the distinct ones).

The product of its digits is 653184, while the sum is 45.

The spelling of 331964242731 in words is "three hundred thirty-one billion, nine hundred sixty-four million, two hundred forty-two thousand, seven hundred thirty-one".