31984975803 has 24 divisors (see below), whose sum is σ = 48388200448. Its totient is φ = 18759510000.

The previous prime is 31984975733. The next prime is 31984975817. The reversal of 31984975803 is 30857948913.

It is not a de Polignac number, because 31984975803 - 2¹⁰ = 31984974779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31984975853) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1409923 + ... + 1432428.

Almost surely, 2^31984975803 is an apocalyptic number.

31984975803 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

31984975803 is a deficient number, since it is larger than the sum of its proper divisors (16403224645).

31984975803 is a wasteful number, since it uses less digits than its factorization.

31984975803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2842407 (or 2842396 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 57.

The spelling of 31984975803 in words is "thirty-one billion, nine hundred eighty-four million, nine hundred seventy-five thousand, eight hundred three".