31424755172 has 12 divisors (see below), whose sum is σ = 54994576896. Its totient is φ = 15712018920.

The previous prime is 31424755151. The next prime is 31424755217. The reversal of 31424755172 is 27155742413.

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 3 ways as a sum of consecutive naturals, for example, 252797 + ... + 356027.

It is an arithmetic number, because the mean of its divisors is an integer number (4582881408).

Almost surely, 2^31424755172 is an apocalyptic number.

It is an amenable number.

31424755172 is a deficient number, since it is larger than the sum of its proper divisors (23569821724).

31424755172 is a wasteful number, since it uses less digits than its factorization.

31424755172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179338 (or 179336 counting only the distinct ones).

The product of its digits is 235200, while the sum is 41.

The spelling of 31424755172 in words is "thirty-one billion, four hundred twenty-four million, seven hundred fifty-five thousand, one hundred seventy-two".