312500000015 has 16 divisors (see below), whose sum is σ = 428587115520. Its totient is φ = 214277870880.

The previous prime is 312499999919. The next prime is 312500000027. The reversal of 312500000015 is 510000005213.

It is not a de Polignac number, because 312500000015 - 2²⁰ = 312498951439 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 312499999939 and 312500000002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 904826 + ... + 1201544.

It is an arithmetic number, because the mean of its divisors is an integer number (26786694720).

Almost surely, 2^312500000015 is an apocalyptic number.

312500000015 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

312500000015 is a deficient number, since it is larger than the sum of its proper divisors (116087115505).

312500000015 is a wasteful number, since it uses less digits than its factorization.

312500000015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326822.

The product of its (nonzero) digits is 150, while the sum is 17.

Adding to 312500000015 its reverse (510000005213), we get a palindrome (822500005228).

The spelling of 312500000015 in words is "three hundred twelve billion, five hundred million, fifteen", and thus it is an aban number.