15857142873 has 64 divisors (see below), whose sum is σ = 26853657600. Its totient is φ = 8176930560.

The previous prime is 15857142871. The next prime is 15857142877. The reversal of 15857142873 is 37824175851.

It is not a de Polignac number, because 15857142873 - 2¹ = 15857142871 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15857142871) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 275298 + ... + 327876.

It is an arithmetic number, because the mean of its divisors is an integer number (419588400).

Almost surely, 2^15857142873 is an apocalyptic number.

15857142873 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

15857142873 is a deficient number, since it is larger than the sum of its proper divisors (10996514727).

15857142873 is a wasteful number, since it uses less digits than its factorization.

15857142873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52662.

The product of its digits is 1881600, while the sum is 51.

The spelling of 15857142873 in words is "fifteen billion, eight hundred fifty-seven million, one hundred forty-two thousand, eight hundred seventy-three".