31640114434 has 64 divisors (see below), whose sum is σ = 51971673600. Its totient is φ = 14390362368.

The previous prime is 31640114419. The next prime is 31640114447. The reversal of 31640114434 is 43441104613.

It is a junction number, because it is equal to n+sod(n) for n = 31640114396 and 31640114405.

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 31 ways as a sum of consecutive naturals, for example, 51114577 + ... + 51115195.

It is an arithmetic number, because the mean of its divisors is an integer number (812057400).

Almost surely, 2^31640114434 is an apocalyptic number.

31640114434 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

31640114434 is a deficient number, since it is larger than the sum of its proper divisors (20331559166).

31640114434 is a wasteful number, since it uses less digits than its factorization.

31640114434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1087.

The product of its (nonzero) digits is 13824, while the sum is 31.

The spelling of 31640114434 in words is "thirty-one billion, six hundred forty million, one hundred fourteen thousand, four hundred thirty-four".