312857855815 has 8 divisors (see below), whose sum is σ = 375432663168. Its totient is φ = 250284127200.

The previous prime is 312857855813. The next prime is 312857855839. The reversal of 312857855815 is 518558758213.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 312857855815 - 2¹ = 312857855813 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 312857855815.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312857855813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 659274 + ... + 1029736.

It is an arithmetic number, because the mean of its divisors is an integer number (46929082896).

Almost surely, 2^312857855815 is an apocalyptic number.

312857855815 is a deficient number, since it is larger than the sum of its proper divisors (62574807353).

312857855815 is a wasteful number, since it uses less digits than its factorization.

312857855815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539369.

The product of its digits is 13440000, while the sum is 58.

The spelling of 312857855815 in words is "three hundred twelve billion, eight hundred fifty-seven million, eight hundred fifty-five thousand, eight hundred fifteen".