15428724480 has 360 divisors, whose sum is σ = 59458668192. Its totient is φ = 3797508096.

The previous prime is 15428724469. The next prime is 15428724481. The reversal of 15428724480 is 8442782451.

15428724480 is a `hidden beast` number, since 1 + 54 + 287 + 244 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (360).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15428724481) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1342117 + ... + 1353563.

Almost surely, 2^15428724480 is an apocalyptic number.

15428724480 is a gapful number since it is divisible by the number (10) 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 15428724480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29729334096).

15428724480 is an abundant number, since it is smaller than the sum of its proper divisors (44029943712).

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

15428724480 is a wasteful number, since it uses less digits than its factorization.

15428724480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11493 (or 11470 counting only the distinct ones).

The product of its (nonzero) digits is 573440, while the sum is 45.

The spelling of 15428724480 in words is "fifteen billion, four hundred twenty-eight million, seven hundred twenty-four thousand, four hundred eighty".