12615000028115 has 32 divisors (see below), whose sum is σ = 15800826214656. Its totient is φ = 9659460695040.

The previous prime is 12615000028109. The next prime is 12615000028121. The reversal of 12615000028115 is 51182000051621.

It is an interprime number because it is at equal distance from previous prime (12615000028109) and next prime (12615000028121).

It is a de Polignac number, because none of the positive numbers 2^k-12615000028115 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 238971014 + ... + 239023796.

It is an arithmetic number, because the mean of its divisors is an integer number (493775819208).

Almost surely, 2^{12615000028115} is an apocalyptic number.

12615000028115 is a deficient number, since it is larger than the sum of its proper divisors (3185826186541).

12615000028115 is a wasteful number, since it uses less digits than its factorization.

12615000028115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74879.

The product of its (nonzero) digits is 4800, while the sum is 32.

Adding to 12615000028115 its reverse (51182000051621), we get a palindrome (63797000079736).

The spelling of 12615000028115 in words is "twelve trillion, six hundred fifteen billion, twenty-eight thousand, one hundred fifteen".