331390472488 has 48 divisors (see below), whose sum is σ = 644793025500. Its totient is φ = 159665651712.

The previous prime is 331390472477. The next prime is 331390472489. The reversal of 331390472488 is 884274093133.

It can be written as a sum of positive squares in 6 ways, for example, as 227240983204 + 104149489284 = 476698^2 + 322722^2 .

It is not an unprimeable number, because it can be changed into a prime (331390472489) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3376168 + ... + 3472936.

Almost surely, 2^331390472488 is an apocalyptic number.

It is an amenable number.

331390472488 is a deficient number, since it is larger than the sum of its proper divisors (313402553012).

331390472488 is a wasteful number, since it uses less digits than its factorization.

331390472488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97342 (or 97309 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 52.

The spelling of 331390472488 in words is "three hundred thirty-one billion, three hundred ninety million, four hundred seventy-two thousand, four hundred eighty-eight".