15381686875 has 10 divisors (see below), whose sum is σ = 19220956700. Its totient is φ = 12305349000.

The previous prime is 15381686869. The next prime is 15381686893. The reversal of 15381686875 is 57868618351.

It is not a de Polignac number, because 15381686875 - 2¹¹ = 15381684827 is a prime.

It is a super-2 number, since 2×15381686875² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 12304725 + ... + 12305974.

It is an arithmetic number, because the mean of its divisors is an integer number (1922095670).

Almost surely, 2^15381686875 is an apocalyptic number.

15381686875 is a deficient number, since it is larger than the sum of its proper divisors (3839269825).

15381686875 is an frugal number, since it uses more digits than its factorization.

15381686875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24610719 (or 24610704 counting only the distinct ones).

The product of its digits is 9676800, while the sum is 58.

The spelling of 15381686875 in words is "fifteen billion, three hundred eighty-one million, six hundred eighty-six thousand, eight hundred seventy-five".