15728278560 has 192 divisors, whose sum is σ = 50812489728. Its totient is φ = 4087286784.

The previous prime is 15728278549. The next prime is 15728278567. The reversal of 15728278560 is 6587282751.

15728278560 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (15728278567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17811879 + ... + 17812761.

It is an arithmetic number, because the mean of its divisors is an integer number (264648384).

Almost surely, 2^15728278560 is an apocalyptic number.

15728278560 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 15728278560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25406244864).

15728278560 is an abundant number, since it is smaller than the sum of its proper divisors (35084211168).

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

15728278560 is a wasteful number, since it uses less digits than its factorization.

15728278560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1807 (or 1799 counting only the distinct ones).

The product of its (nonzero) digits is 1881600, while the sum is 51.

The spelling of 15728278560 in words is "fifteen billion, seven hundred twenty-eight million, two hundred seventy-eight thousand, five hundred sixty".