15539228480 has 28 divisors (see below), whose sum is σ = 37002788580. Its totient is φ = 6215691264.

The previous prime is 15539228479. The next prime is 15539228491. The reversal of 15539228480 is 8482293551.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2382220864 + 13157007616 = 48808^2 + 114704^2 .

It is a super-2 number, since 2×15539228480² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24279725 + ... + 24280364.

Almost surely, 2^15539228480 is an apocalyptic number.

15539228480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15539228480 is an abundant number, since it is smaller than the sum of its proper divisors (21463560100).

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

15539228480 is an equidigital number, since it uses as much as digits as its factorization.

15539228480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48560106 (or 48560096 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 47.

The spelling of 15539228480 in words is "fifteen billion, five hundred thirty-nine million, two hundred twenty-eight thousand, four hundred eighty".