31347414618 has 32 divisors (see below), whose sum is σ = 67820315136. Its totient is φ = 9602100288.

The previous prime is 31347414583. The next prime is 31347414629. The reversal of 31347414618 is 81641474313.

It is a self number, because there is not a number n which added to its sum of digits gives 31347414618.

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 15 ways as a sum of consecutive naturals, for example, 883705 + ... + 918492.

It is an arithmetic number, because the mean of its divisors is an integer number (2119384848).

Almost surely, 2^31347414618 is an apocalyptic number.

31347414618 is an abundant number, since it is smaller than the sum of its proper divisors (36472900518).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31347414618 is a wasteful number, since it uses less digits than its factorization.

31347414618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1802438.

The product of its digits is 193536, while the sum is 42.

The spelling of 31347414618 in words is "thirty-one billion, three hundred forty-seven million, four hundred fourteen thousand, six hundred eighteen".