315812308354 has 4 divisors (see below), whose sum is σ = 473718462534. Its totient is φ = 157906154176.

The previous prime is 315812308349. The next prime is 315812308433. The reversal of 315812308354 is 453803218513.

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

It can be written as a sum of positive squares in only one way, i.e., 315714753225 + 97555129 = 561885^2 + 9877^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 315812308354.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78953077087 + ... + 78953077090.

Almost surely, 2^315812308354 is an apocalyptic number.

315812308354 is a deficient number, since it is larger than the sum of its proper divisors (157906154180).

315812308354 is a wasteful number, since it uses less digits than its factorization.

315812308354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157906154179.

The product of its (nonzero) digits is 345600, while the sum is 43.

The spelling of 315812308354 in words is "three hundred fifteen billion, eight hundred twelve million, three hundred eight thousand, three hundred fifty-four".