728627051764 has 36 divisors (see below), whose sum is σ = 1317764324100. Its totient is φ = 352505831040.

The previous prime is 728627051693. The next prime is 728627051783. The reversal of 728627051764 is 467150726827.

It can be written as a sum of positive squares in 2 ways, for example, as 128866640400 + 599760411364 = 358980^2 + 774442^2 .

It is a congruent number.

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, 35004592 + ... + 35025400.

Almost surely, 2^728627051764 is an apocalyptic number.

It is an amenable number.

728627051764 is a deficient number, since it is larger than the sum of its proper divisors (589137272336).

728627051764 is a wasteful number, since it uses less digits than its factorization.

728627051764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29984 (or 29951 counting only the distinct ones).

The product of its (nonzero) digits is 7902720, while the sum is 55.

The spelling of 728627051764 in words is "seven hundred twenty-eight billion, six hundred twenty-seven million, fifty-one thousand, seven hundred sixty-four".