31974950043 has 32 divisors (see below), whose sum is σ = 48680517120. Its totient is φ = 20727744480.

The previous prime is 31974950041. The next prime is 31974950047. The reversal of 31974950043 is 34005947913.

31974950043 is a `hidden beast` number, since 31 + 9 + 74 + 9 + 500 + 43 = 666.

It is not a de Polignac number, because 31974950043 - 2¹ = 31974950041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31974950041) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 1776258 + ... + 1794168.

It is an arithmetic number, because the mean of its divisors is an integer number (1521266160).

Almost surely, 2^31974950043 is an apocalyptic number.

31974950043 is a deficient number, since it is larger than the sum of its proper divisors (16705567077).

31974950043 is a wasteful number, since it uses less digits than its factorization.

31974950043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19744 (or 19738 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 45.

The spelling of 31974950043 in words is "thirty-one billion, nine hundred seventy-four million, nine hundred fifty thousand, forty-three".