15189189072 has 40 divisors (see below), whose sum is σ = 39243229344. Its totient is φ = 5062483584.

The previous prime is 15189189047. The next prime is 15189189073. The reversal of 15189189072 is 27098198151.

It is a super-2 number, since 2×15189189072² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15189189073) 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, 695958 + ... + 717450.

Almost surely, 2^15189189072 is an apocalyptic number.

15189189072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15189189072 is an abundant number, since it is smaller than the sum of its proper divisors (24054040272).

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

15189189072 is a wasteful number, since it uses less digits than its factorization.

15189189072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36227 (or 36221 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 51.

The spelling of 15189189072 in words is "fifteen billion, one hundred eighty-nine million, one hundred eighty-nine thousand, seventy-two".