31880791804383 has 128 divisors (see below), whose sum is σ = 51872803200000. Its totient is φ = 19274406907392.

The previous prime is 31880791804361. The next prime is 31880791804391. The reversal of 31880791804383 is 38340819708813.

31880791804383 is a `hidden beast` number, since 3 + 1 + 8 + 8 + 0 + 79 + 180 + 4 + 383 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-31880791804383 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31880791804383.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31880791844383) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1212506985 + ... + 1212533277.

It is an arithmetic number, because the mean of its divisors is an integer number (405256275000).

Almost surely, 2^{31880791804383} is an apocalyptic number.

31880791804383 is a deficient number, since it is larger than the sum of its proper divisors (19992011395617).

31880791804383 is a wasteful number, since it uses less digits than its factorization.

31880791804383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27046 (or 27040 counting only the distinct ones).

The product of its (nonzero) digits is 27869184, while the sum is 63.

The spelling of 31880791804383 in words is "thirty-one trillion, eight hundred eighty billion, seven hundred ninety-one million, eight hundred four thousand, three hundred eighty-three".