27557992036 has 9 divisors (see below), whose sum is σ = 48227067091. Its totient is φ = 13778830012.

The previous prime is 27557992013. The next prime is 27557992057. The reversal of 27557992036 is 63029975572.

The square root of 27557992036 is 166006.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian 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 2 ways as a sum of consecutive naturals, for example, 290511 + ... + 373513.

Almost surely, 2^27557992036 is an apocalyptic number.

27557992036 is the 166006-th square number.

It is an amenable number.

27557992036 is a deficient number, since it is larger than the sum of its proper divisors (20669075055).

27557992036 is an frugal number, since it uses more digits than its factorization.

27557992036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166010 (or 83005 counting only the distinct ones).

The product of its (nonzero) digits is 7144200, while the sum is 55.

The spelling of 27557992036 in words is "twenty-seven billion, five hundred fifty-seven million, nine hundred ninety-two thousand, thirty-six".