312857855814 has 16 divisors (see below), whose sum is σ = 715103670528. Its totient is φ = 89387958792.

The previous prime is 312857855813. The next prime is 312857855839. The reversal of 312857855814 is 418558758213.

It is a super-2 number, since 2×312857855814² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

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

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3724498242 + ... + 3724498325.

It is an arithmetic number, because the mean of its divisors is an integer number (44693979408).

Almost surely, 2^312857855814 is an apocalyptic number.

312857855814 is an abundant number, since it is smaller than the sum of its proper divisors (402245814714).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

312857855814 is a wasteful number, since it uses less digits than its factorization.

312857855814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7448996579.

The product of its digits is 10752000, while the sum is 57.

The spelling of 312857855814 in words is "three hundred twelve billion, eight hundred fifty-seven million, eight hundred fifty-five thousand, eight hundred fourteen".