31109404974 has 16 divisors (see below), whose sum is σ = 62822877312. Its totient is φ = 10269123768.

The previous prime is 31109404967. The next prime is 31109405027. The reversal of 31109404974 is 47940490113.

It is a congruent number.

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, 25168804 + ... + 25170039.

It is an arithmetic number, because the mean of its divisors is an integer number (3926429832).

Almost surely, 2^31109404974 is an apocalyptic number.

31109404974 is an abundant number, since it is smaller than the sum of its proper divisors (31713472338).

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

31109404974 is a wasteful number, since it uses less digits than its factorization.

31109404974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50338951.

The product of its (nonzero) digits is 108864, while the sum is 42.

The spelling of 31109404974 in words is "thirty-one billion, one hundred nine million, four hundred four thousand, nine hundred seventy-four".