12615474457828 has 24 divisors (see below), whose sum is σ = 24084263738304. Its totient is φ = 5734264634400.

The previous prime is 12615474457819. The next prime is 12615474457871. The reversal of 12615474457828 is 82875447451621.

It is a super-2 number, since 2×12615474457828² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12615474457828.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5495158 + ... + 7444978.

It is an arithmetic number, because the mean of its divisors is an integer number (1003510989096).

Almost surely, 2^{12615474457828} is an apocalyptic number.

It is an amenable number.

12615474457828 is a deficient number, since it is larger than the sum of its proper divisors (11468789280476).

12615474457828 is a wasteful number, since it uses less digits than its factorization.

12615474457828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2096883 (or 2096881 counting only the distinct ones).

The product of its digits is 120422400, while the sum is 64.

The spelling of 12615474457828 in words is "twelve trillion, six hundred fifteen billion, four hundred seventy-four million, four hundred fifty-seven thousand, eight hundred twenty-eight".