28056106586 has 32 divisors (see below), whose sum is σ = 43266908160. Its totient is φ = 13638121216.

The previous prime is 28056106487. The next prime is 28056106597. The reversal of 28056106586 is 68560165082.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a self number, because there is not a number n which added to its sum of digits gives 28056106586.

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, 9683090 + ... + 9685986.

It is an arithmetic number, because the mean of its divisors is an integer number (1352090880).

Almost surely, 2^28056106586 is an apocalyptic number.

28056106586 is a deficient number, since it is larger than the sum of its proper divisors (15210801574).

28056106586 is a wasteful number, since it uses less digits than its factorization.

28056106586 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3598.

The product of its (nonzero) digits is 691200, while the sum is 47.

The spelling of 28056106586 in words is "twenty-eight billion, fifty-six million, one hundred six thousand, five hundred eighty-six".