31973481814 has 8 divisors (see below), whose sum is σ = 47964178080. Its totient is φ = 15985422456.

The previous prime is 31973481781. The next prime is 31973481821. The reversal of 31973481814 is 41818437913.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 628629 + ... + 677584.

It is an arithmetic number, because the mean of its divisors is an integer number (5995522260).

Almost surely, 2^31973481814 is an apocalyptic number.

31973481814 is a deficient number, since it is larger than the sum of its proper divisors (15990696266).

31973481814 is a wasteful number, since it uses less digits than its factorization.

31973481814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1318454.

The product of its digits is 580608, while the sum is 49.

The spelling of 31973481814 in words is "thirty-one billion, nine hundred seventy-three million, four hundred eighty-one thousand, eight hundred fourteen".