728838008264 has 8 divisors (see below), whose sum is σ = 1366571265510. Its totient is φ = 364419004128.

The previous prime is 728838008257. The next prime is 728838008273. The reversal of 728838008264 is 462800838827.

It can be written as a sum of positive squares in only one way, i.e., 453588780100 + 275249228164 = 673490^2 + 524642^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45552375509 + ... + 45552375524.

Almost surely, 2^728838008264 is an apocalyptic number.

It is an amenable number.

728838008264 is a deficient number, since it is larger than the sum of its proper divisors (637733257246).

728838008264 is a wasteful number, since it uses less digits than its factorization.

728838008264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91104751039 (or 91104751035 counting only the distinct ones).

The product of its (nonzero) digits is 8257536, while the sum is 56.

The spelling of 728838008264 in words is "seven hundred twenty-eight billion, eight hundred thirty-eight million, eight thousand, two hundred sixty-four".