331494735972 has 24 divisors (see below), whose sum is σ = 774176517856. Its totient is φ = 110399845248.

The previous prime is 331494735937. The next prime is 331494735989. The reversal of 331494735972 is 279537494133.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12285973 + ... + 12312924.

Almost surely, 2^331494735972 is an apocalyptic number.

It is an amenable number.

331494735972 is an abundant number, since it is smaller than the sum of its proper divisors (442681781884).

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

331494735972 is a wasteful number, since it uses less digits than its factorization.

331494735972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24600027 (or 24600025 counting only the distinct ones).

The product of its digits is 17146080, while the sum is 57.

The spelling of 331494735972 in words is "three hundred thirty-one billion, four hundred ninety-four million, seven hundred thirty-five thousand, nine hundred seventy-two".