31971460418 has 8 divisors (see below), whose sum is σ = 47958280848. Its totient is φ = 15985366804.

The previous prime is 31971460387. The next prime is 31971460421. The reversal of 31971460418 is 81406417913.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53696 + ... + 258507.

It is an arithmetic number, because the mean of its divisors is an integer number (5994785106).

Almost surely, 2^31971460418 is an apocalyptic number.

31971460418 is a deficient number, since it is larger than the sum of its proper divisors (15986820430).

31971460418 is a wasteful number, since it uses less digits than its factorization.

31971460418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363408.

The product of its (nonzero) digits is 145152, while the sum is 44.

The spelling of 31971460418 in words is "thirty-one billion, nine hundred seventy-one million, four hundred sixty thousand, four hundred eighteen".