15871863332 has 24 divisors (see below), whose sum is σ = 31486694400. Its totient is φ = 6939923616.

The previous prime is 15871863331. The next prime is 15871863401. The reversal of 15871863332 is 23336817851.

It is a super-2 number, since 2×15871863332² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (15871863331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8031332 + ... + 8033307.

It is an arithmetic number, because the mean of its divisors is an integer number (1311945600).

Almost surely, 2^15871863332 is an apocalyptic number.

It is an amenable number.

15871863332 is a deficient number, since it is larger than the sum of its proper divisors (15614831068).

15871863332 is a wasteful number, since it uses less digits than its factorization.

15871863332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16064675 (or 16064673 counting only the distinct ones).

The product of its digits is 725760, while the sum is 47.

The spelling of 15871863332 in words is "fifteen billion, eight hundred seventy-one million, eight hundred sixty-three thousand, three hundred thirty-two".