15428217800 has 36 divisors (see below), whose sum is σ = 35874690945. Its totient is φ = 6170584480.

The previous prime is 15428217781. The next prime is 15428217811. The reversal of 15428217800 is 871282451.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 15119653444 + 308564356 = 122962^2 + 17566^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=87830.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1752209 + ... + 1760991.

Almost surely, 2^15428217800 is an apocalyptic number.

15428217800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15428217800 is an abundant number, since it is smaller than the sum of its proper divisors (20446473145).

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

15428217800 is an frugal number, since it uses more digits than its factorization.

15428217800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17582 (or 8790 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 38.

The spelling of 15428217800 in words is "fifteen billion, four hundred twenty-eight million, two hundred seventeen thousand, eight hundred".