15870287158 has 12 divisors (see below), whose sum is σ = 26166300300. Its totient is φ = 7213766780.

The previous prime is 15870287143. The next prime is 15870287171. The reversal of 15870287158 is 85178207851.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 32789608 + ... + 32790091.

It is an arithmetic number, because the mean of its divisors is an integer number (2180525025).

Almost surely, 2^15870287158 is an apocalyptic number.

15870287158 is a deficient number, since it is larger than the sum of its proper divisors (10296013142).

15870287158 is a wasteful number, since it uses less digits than its factorization.

15870287158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65579723 (or 65579712 counting only the distinct ones).

The product of its (nonzero) digits is 1254400, while the sum is 52.

The spelling of 15870287158 in words is "fifteen billion, eight hundred seventy million, two hundred eighty-seven thousand, one hundred fifty-eight".