15728714428716 has 72 divisors (see below), whose sum is σ = 40073221959680. Its totient is φ = 5201431726176.

The previous prime is 15728714428709. The next prime is 15728714428723. The reversal of 15728714428716 is 61782441782751.

It is a happy number.

15728714428716 is a `hidden beast` number, since 1 + 5 + 72 + 8 + 71 + 4 + 428 + 71 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (15728714428709) and next prime (15728714428723).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 183234855 + ... + 183320673.

Almost surely, 2^{15728714428716} is an apocalyptic number.

It is an amenable number.

15728714428716 is an abundant number, since it is smaller than the sum of its proper divisors (24344507530964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15728714428716 is a wasteful number, since it uses less digits than its factorization.

15728714428716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126043 (or 126038 counting only the distinct ones).

The product of its digits is 42147840, while the sum is 63.

The spelling of 15728714428716 in words is "fifteen trillion, seven hundred twenty-eight billion, seven hundred fourteen million, four hundred twenty-eight thousand, seven hundred sixteen".