15428801172 has 24 divisors (see below), whose sum is σ = 36006842592. Its totient is φ = 5142032800.

The previous prime is 15428801161. The next prime is 15428801191. The reversal of 15428801172 is 27110882451.

It is a self number, because there is not a number n which added to its sum of digits gives 15428801172.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39354 + ... + 180017.

It is an arithmetic number, because the mean of its divisors is an integer number (1500285108).

Almost surely, 2^15428801172 is an apocalyptic number.

15428801172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15428801172 is an abundant number, since it is smaller than the sum of its proper divisors (20578041420).

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

15428801172 is a wasteful number, since it uses less digits than its factorization.

15428801172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225239 (or 225237 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 39.

The spelling of 15428801172 in words is "fifteen billion, four hundred twenty-eight million, eight hundred one thousand, one hundred seventy-two".