331486735968 has 72 divisors (see below), whose sum is σ = 954022888728. Its totient is φ = 109164298752.

The previous prime is 331486735967. The next prime is 331486735999. The reversal of 331486735968 is 869537684133.

331486735968 is a `hidden beast` number, since 3 + 31 + 4 + 8 + 6 + 7 + 3 + 596 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×331486735968² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331486735967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6909805 + ... + 6957612.

It is an arithmetic number, because the mean of its divisors is an integer number (13250317899).

Almost surely, 2^331486735968 is an apocalyptic number.

It is an amenable number.

331486735968 is an abundant number, since it is smaller than the sum of its proper divisors (622536152760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

331486735968 is a wasteful number, since it uses less digits than its factorization.

331486735968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13867516 (or 13867505 counting only the distinct ones).

The product of its digits is 78382080, while the sum is 63.

The spelling of 331486735968 in words is "three hundred thirty-one billion, four hundred eighty-six million, seven hundred thirty-five thousand, nine hundred sixty-eight".