28808022356 has 12 divisors (see below), whose sum is σ = 50592182592. Its totient is φ = 14353113048.

The previous prime is 28808022343. The next prime is 28808022359. The reversal of 28808022356 is 65322080882.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28808022359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12723260 + ... + 12725523.

It is an arithmetic number, because the mean of its divisors is an integer number (4216015216).

Almost surely, 2^28808022356 is an apocalyptic number.

It is an amenable number.

28808022356 is a deficient number, since it is larger than the sum of its proper divisors (21784160236).

28808022356 is a wasteful number, since it uses less digits than its factorization.

28808022356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25449070 (or 25449068 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 44.

The spelling of 28808022356 in words is "twenty-eight billion, eight hundred eight million, twenty-two thousand, three hundred fifty-six".