728895892516 has 81 divisors (see below), whose sum is σ = 1416930395601. Its totient is φ = 327841536000.

The previous prime is 728895892513. The next prime is 728895892531. The reversal of 728895892516 is 615298598827.

The square root of 728895892516 is 853754.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 717595352100 + 11300540416 = 847110^2 + 106304^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (728895892511) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 2836170660 + ... + 2836170916.

Almost surely, 2^728895892516 is an apocalyptic number.

728895892516 is the 853754-th square number.

It is an amenable number.

728895892516 is a deficient number, since it is larger than the sum of its proper divisors (688034503085).

728895892516 is a wasteful number, since it uses less digits than its factorization.

728895892516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 842 (or 421 counting only the distinct ones).

The product of its digits is 174182400, while the sum is 70.

The spelling of 728895892516 in words is "seven hundred twenty-eight billion, eight hundred ninety-five million, eight hundred ninety-two thousand, five hundred sixteen".