31374497328 has 40 divisors (see below), whose sum is σ = 81587563776. Its totient is φ = 10388904000.

The previous prime is 31374497309. The next prime is 31374497333. The reversal of 31374497328 is 82379447313.

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, 2157108 + ... + 2171603.

Almost surely, 2^31374497328 is an apocalyptic number.

It is an amenable number.

31374497328 is an abundant number, since it is smaller than the sum of its proper divisors (50213066448).

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

31374497328 is a wasteful number, since it uses less digits than its factorization.

31374497328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4328873 (or 4328867 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 51.

The spelling of 31374497328 in words is "thirty-one billion, three hundred seventy-four million, four hundred ninety-seven thousand, three hundred twenty-eight".