28338714193228 has 24 divisors (see below), whose sum is σ = 50067387266400. Its totient is φ = 14033925669120.

The previous prime is 28338714193193. The next prime is 28338714193241. The reversal of 28338714193228 is 82239141783382.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21775183 + ... + 23039878.

It is an arithmetic number, because the mean of its divisors is an integer number (2086141136100).

Almost surely, 2^{28338714193228} is an apocalyptic number.

It is an amenable number.

28338714193228 is a deficient number, since it is larger than the sum of its proper divisors (21728673073172).

28338714193228 is a wasteful number, since it uses less digits than its factorization.

28338714193228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44816577 (or 44816575 counting only the distinct ones).

The product of its digits is 27869184, while the sum is 61.

The spelling of 28338714193228 in words is "twenty-eight trillion, three hundred thirty-eight billion, seven hundred fourteen million, one hundred ninety-three thousand, two hundred twenty-eight".