28673028928 has 28 divisors (see below), whose sum is σ = 57238769952. Its totient is φ = 14250661760.

The previous prime is 28673028911. The next prime is 28673028941. The reversal of 28673028928 is 82982037682.

It is a happy number.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1330678 + ... + 1352053.

It is an arithmetic number, because the mean of its divisors is an integer number (2044241784).

Almost surely, 2^28673028928 is an apocalyptic number.

It is an amenable number.

28673028928 is a deficient number, since it is larger than the sum of its proper divisors (28565741024).

28673028928 is a wasteful number, since it uses less digits than its factorization.

28673028928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2682910 (or 2682900 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 55.

The spelling of 28673028928 in words is "twenty-eight billion, six hundred seventy-three million, twenty-eight thousand, nine hundred twenty-eight".