15871458872 has 16 divisors (see below), whose sum is σ = 29925239400. Its totient is φ = 7891395040.

The previous prime is 15871458853. The next prime is 15871458877. The reversal of 15871458872 is 27885417851.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15871458877) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5540279 + ... + 5543142.

Almost surely, 2^15871458872 is an apocalyptic number.

It is an amenable number.

15871458872 is a deficient number, since it is larger than the sum of its proper divisors (14053780528).

15871458872 is a wasteful number, since it uses less digits than its factorization.

15871458872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11083606 (or 11083602 counting only the distinct ones).

The product of its digits is 5017600, while the sum is 56.

The spelling of 15871458872 in words is "fifteen billion, eight hundred seventy-one million, four hundred fifty-eight thousand, eight hundred seventy-two".