15012268992 has 168 divisors, whose sum is σ = 50873253600. Its totient is φ = 4141283328.

The previous prime is 15012268991. The next prime is 15012269011. The reversal of 15012268992 is 29986221051.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (168).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15012268991) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52734 + ... + 181122.

Almost surely, 2^15012268992 is an apocalyptic number.

15012268992 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 15012268992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25436626800).

15012268992 is an abundant number, since it is smaller than the sum of its proper divisors (35860984608).

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

15012268992 is a wasteful number, since it uses less digits than its factorization.

15012268992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128443 (or 128430 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 45.

The spelling of 15012268992 in words is "fifteen billion, twelve million, two hundred sixty-eight thousand, nine hundred ninety-two".