31380796295817 has 4 divisors (see below), whose sum is σ = 41841061727760. Its totient is φ = 20920530863876.

The previous prime is 31380796295809. The next prime is 31380796295831. The reversal of 31380796295817 is 71859269708313.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 31380796295817 - 2³ = 31380796295809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31380796295857) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5230132715967 + ... + 5230132715972.

It is an arithmetic number, because the mean of its divisors is an integer number (10460265431940).

Almost surely, 2^{31380796295817} is an apocalyptic number.

It is an amenable number.

31380796295817 is a deficient number, since it is larger than the sum of its proper divisors (10460265431943).

31380796295817 is a wasteful number, since it uses less digits than its factorization.

31380796295817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10460265431942.

The product of its (nonzero) digits is 137168640, while the sum is 69.

The spelling of 31380796295817 in words is "thirty-one trillion, three hundred eighty billion, seven hundred ninety-six million, two hundred ninety-five thousand, eight hundred seventeen".