315094186389 has 4 divisors (see below), whose sum is σ = 420125581856. Its totient is φ = 210062790924.

The previous prime is 315094186361. The next prime is 315094186391. The reversal of 315094186389 is 983681490513.

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 not a de Polignac number, because 315094186389 - 2⁸ = 315094186133 is a prime.

It is a super-2 number, since 2×315094186389² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315094186349) 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, 52515697729 + ... + 52515697734.

It is an arithmetic number, because the mean of its divisors is an integer number (105031395464).

Almost surely, 2^315094186389 is an apocalyptic number.

It is an amenable number.

315094186389 is a deficient number, since it is larger than the sum of its proper divisors (105031395467).

315094186389 is a wasteful number, since it uses less digits than its factorization.

315094186389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105031395466.

The product of its (nonzero) digits is 5598720, while the sum is 57.

The spelling of 315094186389 in words is "three hundred fifteen billion, ninety-four million, one hundred eighty-six thousand, three hundred eighty-nine".