15472728432 has 960 divisors, whose sum is σ = 60253286400. Its totient is φ = 3762339840.

The previous prime is 15472728319. The next prime is 15472728443. The reversal of 15472728432 is 23482727451.

15472728432 is a `hidden beast` number, since 1 + 5 + 472 + 72 + 84 + 32 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 211955148 + ... + 211955220.

It is an arithmetic number, because the mean of its divisors is an integer number (62763840).

Almost surely, 2^15472728432 is an apocalyptic number.

15472728432 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 15472728432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30126643200).

15472728432 is an abundant number, since it is smaller than the sum of its proper divisors (44780557968).

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

15472728432 is a wasteful number, since it uses less digits than its factorization.

15472728432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171 (or 152 counting only the distinct ones).

The product of its digits is 752640, while the sum is 45.

The spelling of 15472728432 in words is "fifteen billion, four hundred seventy-two million, seven hundred twenty-eight thousand, four hundred thirty-two".