15728730144 has 24 divisors (see below), whose sum is σ = 41287916880. Its totient is φ = 5242910016.

The previous prime is 15728730131. The next prime is 15728730167. The reversal of 15728730144 is 44103782751.

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 15728730096 and 15728730105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81920374 + ... + 81920565.

It is an arithmetic number, because the mean of its divisors is an integer number (1720329870).

Almost surely, 2^15728730144 is an apocalyptic number.

It is an amenable number.

15728730144 is an abundant number, since it is smaller than the sum of its proper divisors (25559186736).

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

15728730144 is a wasteful number, since it uses less digits than its factorization.

15728730144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163840952 (or 163840944 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 42.

The spelling of 15728730144 in words is "fifteen billion, seven hundred twenty-eight million, seven hundred thirty thousand, one hundred forty-four".