28732655133 has 288 divisors, whose sum is σ = 57788989440. Its totient is φ = 13579695360.

The previous prime is 28732655117. The next prime is 28732655141. The reversal of 28732655133 is 33155623782.

28732655133 is a `hidden beast` number, since 2 + 8 + 73 + 2 + 65 + 513 + 3 = 666.

It is not a de Polignac number, because 28732655133 - 2⁴ = 28732655117 is a prime.

It is a super-2 number, since 2×28732655133² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28732655143) by changing a digit.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 226241316 + ... + 226241442.

Almost surely, 2^28732655133 is an apocalyptic number.

It is an amenable number.

28732655133 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

28732655133 is a wasteful number, since it uses less digits than its factorization.

28732655133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277 (or 267 counting only the distinct ones).

The product of its digits is 907200, while the sum is 45.

It can be divided in two parts, 28732 and 655133, that added together give a triangular number (683865 = T₁₁₆₉).

The spelling of 28732655133 in words is "twenty-eight billion, seven hundred thirty-two million, six hundred fifty-five thousand, one hundred thirty-three".