28056108038 has 32 divisors (see below), whose sum is σ = 49527410688. Its totient is φ = 11669313600.

The previous prime is 28056108013. The next prime is 28056108061. The reversal of 28056108038 is 83080165082.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a junction number, because it is equal to n+sod(n) for n = 28056107986 and 28056108004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18320 + ... + 237587.

It is an arithmetic number, because the mean of its divisors is an integer number (1547731584).

Almost surely, 2^28056108038 is an apocalyptic number.

28056108038 is a deficient number, since it is larger than the sum of its proper divisors (21471302650).

28056108038 is a wasteful number, since it uses less digits than its factorization.

28056108038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256148.

The product of its (nonzero) digits is 92160, while the sum is 41.

The spelling of 28056108038 in words is "twenty-eight billion, fifty-six million, one hundred eight thousand, thirty-eight".