31400933685 has 64 divisors (see below), whose sum is σ = 55800576000. Its totient is φ = 14949820160.

The previous prime is 31400933659. The next prime is 31400933713. The reversal of 31400933685 is 58633900413.

It is not a de Polignac number, because 31400933685 - 2⁹ = 31400933173 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 (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15175831 + ... + 15177899.

It is an arithmetic number, because the mean of its divisors is an integer number (871884000).

Almost surely, 2^31400933685 is an apocalyptic number.

It is an amenable number.

31400933685 is a deficient number, since it is larger than the sum of its proper divisors (24399642315).

31400933685 is a wasteful number, since it uses less digits than its factorization.

31400933685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3706.

The product of its (nonzero) digits is 233280, while the sum is 42.

It can be divided in two parts, 3140093 and 3685, that added together give a triangular number (3143778 = T₂₅₀₇).

The spelling of 31400933685 in words is "thirty-one billion, four hundred million, nine hundred thirty-three thousand, six hundred eighty-five".