31698800005 has 16 divisors (see below), whose sum is σ = 40437043200. Its totient is φ = 23786481600.

The previous prime is 31698799997. The next prime is 31698800027. The reversal of 31698800005 is 50000889613.

It is a happy number.

It is not a de Polignac number, because 31698800005 - 2³ = 31698799997 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1642245 + ... + 1661434.

It is an arithmetic number, because the mean of its divisors is an integer number (2527315200).

Almost surely, 2^31698800005 is an apocalyptic number.

It is an amenable number.

31698800005 is a deficient number, since it is larger than the sum of its proper divisors (8738243195).

31698800005 is a wasteful number, since it uses less digits than its factorization.

31698800005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3303804.

The product of its (nonzero) digits is 51840, while the sum is 40.

The spelling of 31698800005 in words is "thirty-one billion, six hundred ninety-eight million, eight hundred thousand, five".