28699453233 has 12 divisors (see below), whose sum is σ = 45223381008. Its totient is φ = 17393607960.

The previous prime is 28699453219. The next prime is 28699453253. The reversal of 28699453233 is 33235499682.

It is a happy number.

28699453233 is a `hidden beast` number, since 2 + 86 + 99 + 453 + 23 + 3 = 666.

It is not a de Polignac number, because 28699453233 - 2⁶ = 28699453169 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28699453233.

It is not an unprimeable number, because it can be changed into a prime (28699453213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 144946635 + ... + 144946832.

It is an arithmetic number, because the mean of its divisors is an integer number (3768615084).

Almost surely, 2^28699453233 is an apocalyptic number.

It is an amenable number.

28699453233 is a deficient number, since it is larger than the sum of its proper divisors (16523927775).

28699453233 is a wasteful number, since it uses less digits than its factorization.

28699453233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289893484 (or 289893481 counting only the distinct ones).

The product of its digits is 8398080, while the sum is 54.

The spelling of 28699453233 in words is "twenty-eight billion, six hundred ninety-nine million, four hundred fifty-three thousand, two hundred thirty-three".