31018142874 has 64 divisors (see below), whose sum is σ = 64727608320. Its totient is φ = 9898536960.

The previous prime is 31018142849. The next prime is 31018142899. The reversal of 31018142874 is 47824181013.

It is an interprime number because it is at equal distance from previous prime (31018142849) and next prime (31018142899).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7973922 + ... + 7977810.

It is an arithmetic number, because the mean of its divisors is an integer number (1011368880).

Almost surely, 2^31018142874 is an apocalyptic number.

31018142874 is an abundant number, since it is smaller than the sum of its proper divisors (33709465446).

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

31018142874 is a wasteful number, since it uses less digits than its factorization.

31018142874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4375.

The product of its (nonzero) digits is 43008, while the sum is 39.

The spelling of 31018142874 in words is "thirty-one billion, eighteen million, one hundred forty-two thousand, eight hundred seventy-four".