31315747854 has 8 divisors (see below), whose sum is σ = 62631495720. Its totient is φ = 10438582616.

The previous prime is 31315747849. The next prime is 31315747871. The reversal of 31315747854 is 45874751313.

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

31315747854 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2609645649 + ... + 2609645660.

It is an arithmetic number, because the mean of its divisors is an integer number (7828936965).

Almost surely, 2^31315747854 is an apocalyptic number.

31315747854 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

31315747854 is a wasteful number, since it uses less digits than its factorization.

31315747854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5219291314.

The product of its digits is 1411200, while the sum is 48.

The spelling of 31315747854 in words is "thirty-one billion, three hundred fifteen million, seven hundred forty-seven thousand, eight hundred fifty-four".