315710955478 has 4 divisors (see below), whose sum is σ = 473566433220. Its totient is φ = 157855477738.

The previous prime is 315710955467. The next prime is 315710955481. The reversal of 315710955478 is 874559017513.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78927738868 + ... + 78927738871.

It is an arithmetic number, because the mean of its divisors is an integer number (118391608305).

Almost surely, 2^315710955478 is an apocalyptic number.

315710955478 is a deficient number, since it is larger than the sum of its proper divisors (157855477742).

315710955478 is a wasteful number, since it uses less digits than its factorization.

315710955478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157855477741.

The product of its (nonzero) digits is 5292000, while the sum is 55.

The spelling of 315710955478 in words is "three hundred fifteen billion, seven hundred ten million, nine hundred fifty-five thousand, four hundred seventy-eight".