31928803428 has 12 divisors (see below), whose sum is σ = 74500541360. Its totient is φ = 10642934472.

The previous prime is 31928803411. The next prime is 31928803463. The reversal of 31928803428 is 82430882913.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1330366798 + ... + 1330366821.

Almost surely, 2^31928803428 is an apocalyptic number.

It is an amenable number.

31928803428 is an abundant number, since it is smaller than the sum of its proper divisors (42571737932).

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

31928803428 is a wasteful number, since it uses less digits than its factorization.

31928803428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2660733626 (or 2660733624 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 48.

The spelling of 31928803428 in words is "thirty-one billion, nine hundred twenty-eight million, eight hundred three thousand, four hundred twenty-eight".