27255020990 has 32 divisors (see below), whose sum is σ = 50916206880. Its totient is φ = 10491755904.

The previous prime is 27255020981. The next prime is 27255021007. The reversal of 27255020990 is 9902055272.

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 15 ways as a sum of consecutive naturals, for example, 64037 + ... + 242096.

It is an arithmetic number, because the mean of its divisors is an integer number (1591131465).

Almost surely, 2^27255020990 is an apocalyptic number.

27255020990 is a deficient number, since it is larger than the sum of its proper divisors (23661185890).

27255020990 is a wasteful number, since it uses less digits than its factorization.

27255020990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306476.

The product of its (nonzero) digits is 113400, while the sum is 41.

The spelling of 27255020990 in words is "twenty-seven billion, two hundred fifty-five million, twenty thousand, nine hundred ninety".