15678731682868 has 12 divisors (see below), whose sum is σ = 27635174549920. Its totient is φ = 7782967525752.

The previous prime is 15678731682847. The next prime is 15678731682917. The reversal of 15678731682868 is 86828613787651.

It is a junction number, because it is equal to n+sod(n) for n = 15678731682794 and 15678731682803.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14099578296 + ... + 14099579407.

Almost surely, 2^{15678731682868} is an apocalyptic number.

It is an amenable number.

15678731682868 is a deficient number, since it is larger than the sum of its proper divisors (11956442867052).

15678731682868 is a wasteful number, since it uses less digits than its factorization.

15678731682868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28199157846 (or 28199157844 counting only the distinct ones).

The product of its digits is 1300561920, while the sum is 76.

The spelling of 15678731682868 in words is "fifteen trillion, six hundred seventy-eight billion, seven hundred thirty-one million, six hundred eighty-two thousand, eight hundred sixty-eight".