28673737233 has 32 divisors (see below), whose sum is σ = 39116755200. Its totient is φ = 18678905856.

The previous prime is 28673737223. The next prime is 28673737237. The reversal of 28673737233 is 33273737682.

It is a happy number.

It is not a de Polignac number, because 28673737233 - 2²⁰ = 28672688657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28673737237) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14061628 + ... + 14063666.

It is an arithmetic number, because the mean of its divisors is an integer number (1222398600).

Almost surely, 2^28673737233 is an apocalyptic number.

It is an amenable number.

28673737233 is a deficient number, since it is larger than the sum of its proper divisors (10443017967).

28673737233 is a wasteful number, since it uses less digits than its factorization.

28673737233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2681.

The product of its digits is 5334336, while the sum is 51.

The spelling of 28673737233 in words is "twenty-eight billion, six hundred seventy-three million, seven hundred thirty-seven thousand, two hundred thirty-three".