728587228650 has 24 divisors (see below), whose sum is σ = 1806896327424. Its totient is φ = 194289927600.

The previous prime is 728587228601. The next prime is 728587228667. The reversal of 728587228650 is 56822785827.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2428623946 + ... + 2428624245.

It is an arithmetic number, because the mean of its divisors is an integer number (75287346976).

Almost surely, 2^728587228650 is an apocalyptic number.

728587228650 is an abundant number, since it is smaller than the sum of its proper divisors (1078309098774).

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

728587228650 is a wasteful number, since it uses less digits than its factorization.

728587228650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4857248206 (or 4857248201 counting only the distinct ones).

The product of its (nonzero) digits is 30105600, while the sum is 60.

The spelling of 728587228650 in words is "seven hundred twenty-eight billion, five hundred eighty-seven million, two hundred twenty-eight thousand, six hundred fifty".