15875263872 has 448 divisors, whose sum is σ = 53379496800. Its totient is φ = 4664107008.

The previous prime is 15875263861. The next prime is 15875263903. The reversal of 15875263872 is 27836257851.

15875263872 is a `hidden beast` number, since 1 + 5 + 87 + 526 + 38 + 7 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 27900004 + ... + 27900572.

Almost surely, 2^15875263872 is an apocalyptic number.

15875263872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15875263872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26689748400).

15875263872 is an abundant number, since it is smaller than the sum of its proper divisors (37504232928).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15875263872 is an equidigital number, since it uses as much as digits as its factorization.

15875263872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637 (or 610 counting only the distinct ones).

The product of its digits is 5644800, while the sum is 54.

The spelling of 15875263872 in words is "fifteen billion, eight hundred seventy-five million, two hundred sixty-three thousand, eight hundred seventy-two".