27800186404 has 6 divisors (see below), whose sum is σ = 48650326214. Its totient is φ = 13900093200.

The previous prime is 27800186291. The next prime is 27800186423. The reversal of 27800186404 is 40468100872.

It can be written as a sum of positive squares in only one way, i.e., 19334346304 + 8465840100 = 139048^2 + 92010^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3475023297 + ... + 3475023304.

Almost surely, 2^27800186404 is an apocalyptic number.

It is an amenable number.

27800186404 is a deficient number, since it is larger than the sum of its proper divisors (20850139810).

27800186404 is a wasteful number, since it uses less digits than its factorization.

27800186404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6950046605 (or 6950046603 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 40.

The spelling of 27800186404 in words is "twenty-seven billion, eight hundred million, one hundred eighty-six thousand, four hundred four".