28133336296 has 16 divisors (see below), whose sum is σ = 56807698500. Its totient is φ = 12984616704.

The previous prime is 28133336269. The next prime is 28133336303. The reversal of 28133336296 is 69263333182.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 26370512100 + 1762824196 = 162390^2 + 41986^2 .

It is a super-2 number, since 2×28133336296² (a number of 22 digits) contains 22 as substring.

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, 135256321 + ... + 135256528.

Almost surely, 2^28133336296 is an apocalyptic number.

28133336296 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

28133336296 is an abundant number, since it is smaller than the sum of its proper divisors (28674362204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28133336296 is a wasteful number, since it uses less digits than its factorization.

28133336296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270512868 (or 270512864 counting only the distinct ones).

The product of its digits is 839808, while the sum is 46.

The spelling of 28133336296 in words is "twenty-eight billion, one hundred thirty-three million, three hundred thirty-six thousand, two hundred ninety-six".