15015142872 has 24 divisors (see below), whose sum is σ = 40666012140. Its totient is φ = 5005047600.

The previous prime is 15015142861. The next prime is 15015142903. The reversal of 15015142872 is 27824151051.

It is a happy number.

15015142872 is a `hidden beast` number, since 1 + 50 + 1 + 514 + 28 + 72 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 104271754 + ... + 104271897.

Almost surely, 2^15015142872 is an apocalyptic number.

15015142872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15015142872 is an abundant number, since it is smaller than the sum of its proper divisors (25650869268).

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

15015142872 is a wasteful number, since it uses less digits than its factorization.

15015142872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208543663 (or 208543656 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 36.

The spelling of 15015142872 in words is "fifteen billion, fifteen million, one hundred forty-two thousand, eight hundred seventy-two".