28266162188 has 48 divisors (see below), whose sum is σ = 54907819008. Its totient is φ = 12623688000.

The previous prime is 28266162167. The next prime is 28266162227. The reversal of 28266162188 is 88126166282.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2654531 + ... + 2665157.

It is an arithmetic number, because the mean of its divisors is an integer number (1143912896).

Almost surely, 2^28266162188 is an apocalyptic number.

It is an amenable number.

28266162188 is a deficient number, since it is larger than the sum of its proper divisors (26641656820).

28266162188 is a wasteful number, since it uses less digits than its factorization.

28266162188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11694 (or 11692 counting only the distinct ones).

The product of its digits is 884736, while the sum is 50.

The spelling of 28266162188 in words is "twenty-eight billion, two hundred sixty-six million, one hundred sixty-two thousand, one hundred eighty-eight".