15308342728 has 32 divisors (see below), whose sum is σ = 32920364160. Its totient is φ = 6537363840.

The previous prime is 15308342713. The next prime is 15308342773. The reversal of 15308342728 is 82724380351.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 470676 + ... + 502147.

It is an arithmetic number, because the mean of its divisors is an integer number (1028761380).

Almost surely, 2^15308342728 is an apocalyptic number.

It is an amenable number.

15308342728 is an abundant number, since it is smaller than the sum of its proper divisors (17612021432).

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

15308342728 is a wasteful number, since it uses less digits than its factorization.

15308342728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 973117 (or 973113 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 43.

The spelling of 15308342728 in words is "fifteen billion, three hundred eight million, three hundred forty-two thousand, seven hundred twenty-eight".