31109112764 has 6 divisors (see below), whose sum is σ = 54440947344. Its totient is φ = 15554556380.

The previous prime is 31109112751. The next prime is 31109112767. The reversal of 31109112764 is 46721190113.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31109112767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3888639092 + ... + 3888639099.

It is an arithmetic number, because the mean of its divisors is an integer number (9073491224).

Almost surely, 2^31109112764 is an apocalyptic number.

It is an amenable number.

31109112764 is a deficient number, since it is larger than the sum of its proper divisors (23331834580).

31109112764 is a wasteful number, since it uses less digits than its factorization.

31109112764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7777278195 (or 7777278193 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 35.

The spelling of 31109112764 in words is "thirty-one billion, one hundred nine million, one hundred twelve thousand, seven hundred sixty-four".