315787219271 has 4 divisors (see below), whose sum is σ = 319042757712. Its totient is φ = 312531680832.

The previous prime is 315787219249. The next prime is 315787219273. The reversal of 315787219271 is 172912787513.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 315787219271 - 2¹⁸ = 315786957127 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 (315787219273) 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, 1627769075 + ... + 1627769268.

It is an arithmetic number, because the mean of its divisors is an integer number (79760689428).

Almost surely, 2^315787219271 is an apocalyptic number.

315787219271 is a deficient number, since it is larger than the sum of its proper divisors (3255538441).

315787219271 is an equidigital number, since it uses as much as digits as its factorization.

315787219271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3255538440.

The product of its digits is 1481760, while the sum is 53.

The spelling of 315787219271 in words is "three hundred fifteen billion, seven hundred eighty-seven million, two hundred nineteen thousand, two hundred seventy-one".