31108416456 has 128 divisors (see below), whose sum is σ = 84325127040. Its totient is φ = 9506764800.

The previous prime is 31108416403. The next prime is 31108416533. The reversal of 31108416456 is 65461480113.

It is a Harshad number since it is a multiple of its sum of digits (39).

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, 45019071 + ... + 45019761.

It is an arithmetic number, because the mean of its divisors is an integer number (658790055).

Almost surely, 2^31108416456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31108416456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42162563520).

31108416456 is an abundant number, since it is smaller than the sum of its proper divisors (53216710584).

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

31108416456 is a wasteful number, since it uses less digits than its factorization.

31108416456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1487 (or 1483 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

Adding to 31108416456 its reverse (65461480113), we get a palindrome (96569896569).

The spelling of 31108416456 in words is "thirty-one billion, one hundred eight million, four hundred sixteen thousand, four hundred fifty-six".