28768732953 has 16 divisors (see below), whose sum is σ = 41280500736. Its totient is φ = 17755050240.

The previous prime is 28768732939. The next prime is 28768732991. The reversal of 28768732953 is 35923786782.

It is not a de Polignac number, because 28768732953 - 2²⁴ = 28751955737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28768732753) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4620601 + ... + 4626822.

It is an arithmetic number, because the mean of its divisors is an integer number (2580031296).

Almost surely, 2^28768732953 is an apocalyptic number.

It is an amenable number.

28768732953 is a deficient number, since it is larger than the sum of its proper divisors (12511767783).

28768732953 is a wasteful number, since it uses less digits than its factorization.

28768732953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9247504.

The product of its digits is 30481920, while the sum is 60.

The spelling of 28768732953 in words is "twenty-eight billion, seven hundred sixty-eight million, seven hundred thirty-two thousand, nine hundred fifty-three".