15871271875 has 12 divisors (see below), whose sum is σ = 19837824048. Its totient is φ = 12697015000.

The previous prime is 15871271839. The next prime is 15871271879. The reversal of 15871271875 is 57817217851.

It is not a de Polignac number, because 15871271875 - 2⁷ = 15871271747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15871271879) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2536279 + ... + 2542528.

It is an arithmetic number, because the mean of its divisors is an integer number (1653152004).

Almost surely, 2^15871271875 is an apocalyptic number.

15871271875 is a deficient number, since it is larger than the sum of its proper divisors (3966552173).

15871271875 is an frugal number, since it uses more digits than its factorization.

15871271875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5078832 (or 5078812 counting only the distinct ones).

The product of its digits is 1097600, while the sum is 52.

The spelling of 15871271875 in words is "fifteen billion, eight hundred seventy-one million, two hundred seventy-one thousand, eight hundred seventy-five".