313531475789 has 4 divisors (see below), whose sum is σ = 358321686624. Its totient is φ = 268741264956.

The previous prime is 313531475783. The next prime is 313531475839. The reversal of 313531475789 is 987574135313.

It is a happy number.

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 313531475789 - 2⁴ = 313531475773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313531475783) 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, 22395105407 + ... + 22395105420.

It is an arithmetic number, because the mean of its divisors is an integer number (89580421656).

Almost surely, 2^313531475789 is an apocalyptic number.

It is an amenable number.

313531475789 is a deficient number, since it is larger than the sum of its proper divisors (44790210835).

313531475789 is an equidigital number, since it uses as much as digits as its factorization.

313531475789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44790210834.

The product of its digits is 9525600, while the sum is 56.

The spelling of 313531475789 in words is "three hundred thirteen billion, five hundred thirty-one million, four hundred seventy-five thousand, seven hundred eighty-nine".