15871587287142 has 64 divisors (see below), whose sum is σ = 32913004161024. Its totient is φ = 5097083838720.

The previous prime is 15871587287131. The next prime is 15871587287159. The reversal of 15871587287142 is 24178278517851.

It is a Smith number, since the sum of its digits (66) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 311444728 + ... + 311495684.

It is an arithmetic number, because the mean of its divisors is an integer number (514265690016).

Almost surely, 2^{15871587287142} is an apocalyptic number.

15871587287142 is an abundant number, since it is smaller than the sum of its proper divisors (17041416873882).

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

15871587287142 is a wasteful number, since it uses less digits than its factorization.

15871587287142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58413.

The product of its digits is 70246400, while the sum is 66.

The spelling of 15871587287142 in words is "fifteen trillion, eight hundred seventy-one billion, five hundred eighty-seven million, two hundred eighty-seven thousand, one hundred forty-two".