27750186992 has 20 divisors (see below), whose sum is σ = 58653804696. Its totient is φ = 12613721280.

The previous prime is 27750186977. The next prime is 27750187009. The reversal of 27750186992 is 29968105772.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78835583 + ... + 78835934.

Almost surely, 2^27750186992 is an apocalyptic number.

27750186992 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

27750186992 is an abundant number, since it is smaller than the sum of its proper divisors (30903617704).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27750186992 is a wasteful number, since it uses less digits than its factorization.

27750186992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157671536 (or 157671530 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 56.

The spelling of 27750186992 in words is "twenty-seven billion, seven hundred fifty million, one hundred eighty-six thousand, nine hundred ninety-two".