728856944814 has 32 divisors (see below), whose sum is σ = 1493392422816. Its totient is φ = 237006881280.

The previous prime is 728856944807. The next prime is 728856944857. The reversal of 728856944814 is 418449658827.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2991474 + ... + 3225930.

It is an arithmetic number, because the mean of its divisors is an integer number (46668513213).

Almost surely, 2^728856944814 is an apocalyptic number.

728856944814 is an abundant number, since it is smaller than the sum of its proper divisors (764535478002).

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

728856944814 is a wasteful number, since it uses less digits than its factorization.

728856944814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247140.

The product of its digits is 123863040, while the sum is 66.

The spelling of 728856944814 in words is "seven hundred twenty-eight billion, eight hundred fifty-six million, nine hundred forty-four thousand, eight hundred fourteen".