728434782088 has 32 divisors (see below), whose sum is σ = 1476601239960. Its totient is φ = 334892482560.

The previous prime is 728434782043. The next prime is 728434782167. The reversal of 728434782088 is 880287434827.

It can be written as a sum of positive squares in 4 ways, for example, as 626570399844 + 101864382244 = 791562^2 + 319162^2 .

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, 13600083 + ... + 13653538.

Almost surely, 2^728434782088 is an apocalyptic number.

It is an amenable number.

728434782088 is an abundant number, since it is smaller than the sum of its proper divisors (748166457872).

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

728434782088 is a wasteful number, since it uses less digits than its factorization.

728434782088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27253897 (or 27253893 counting only the distinct ones).

The product of its (nonzero) digits is 38535168, while the sum is 61.

The spelling of 728434782088 in words is "seven hundred twenty-eight billion, four hundred thirty-four million, seven hundred eighty-two thousand, eighty-eight".