31348118916 has 81 divisors (see below), whose sum is σ = 82900751479. Its totient is φ = 9987262032.

The previous prime is 31348118911. The next prime is 31348118927. The reversal of 31348118916 is 61981184313.

The square root of 31348118916 is 177054.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31348118911) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 24432811 + ... + 24434093.

Almost surely, 2^31348118916 is an apocalyptic number.

31348118916 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

31348118916 is the 177054-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31348118916

31348118916 is an abundant number, since it is smaller than the sum of its proper divisors (51552632563).

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

31348118916 is a wasteful number, since it uses less digits than its factorization.

31348118916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2622 (or 1311 counting only the distinct ones).

The product of its digits is 124416, while the sum is 45.

The spelling of 31348118916 in words is "thirty-one billion, three hundred forty-eight million, one hundred eighteen thousand, nine hundred sixteen".