27804868828 has 12 divisors (see below), whose sum is σ = 53082022392. Its totient is φ = 12638576720.

The previous prime is 27804868811. The next prime is 27804868859. The reversal of 27804868828 is 82886840872.

It is a super-2 number, since 2×27804868828² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 315964375 + ... + 315964462.

It is an arithmetic number, because the mean of its divisors is an integer number (4423501866).

Almost surely, 2^27804868828 is an apocalyptic number.

It is an amenable number.

27804868828 is a deficient number, since it is larger than the sum of its proper divisors (25277153564).

27804868828 is a wasteful number, since it uses less digits than its factorization.

27804868828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 631928852 (or 631928850 counting only the distinct ones).

The product of its (nonzero) digits is 22020096, while the sum is 61.

The spelling of 27804868828 in words is "twenty-seven billion, eight hundred four million, eight hundred sixty-eight thousand, eight hundred twenty-eight".