27807836828 has 6 divisors (see below), whose sum is σ = 48663714456. Its totient is φ = 13903918412.

The previous prime is 27807836743. The next prime is 27807836863. The reversal of 27807836828 is 82863870872.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3475979600 + ... + 3475979607.

It is an arithmetic number, because the mean of its divisors is an integer number (8110619076).

Almost surely, 2^27807836828 is an apocalyptic number.

It is an amenable number.

27807836828 is a deficient number, since it is larger than the sum of its proper divisors (20855877628).

27807836828 is a wasteful number, since it uses less digits than its factorization.

27807836828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6951959211 (or 6951959209 counting only the distinct ones).

The product of its (nonzero) digits is 14450688, while the sum is 59.

The spelling of 27807836828 in words is "twenty-seven billion, eight hundred seven million, eight hundred thirty-six thousand, eight hundred twenty-eight".