18427099088 has 20 divisors (see below), whose sum is σ = 35789809380. Its totient is φ = 9191019264.

The previous prime is 18427099079. The next prime is 18427099111. The reversal of 18427099088 is 88099072481.

It can be written as a sum of positive squares in 2 ways, for example, as 6696476224 + 11730622864 = 81832^2 + 108308^2 .

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, 1401395 + ... + 1414482.

It is an arithmetic number, because the mean of its divisors is an integer number (1789490469).

Almost surely, 2^18427099088 is an apocalyptic number.

It is an amenable number.

18427099088 is a deficient number, since it is larger than the sum of its proper divisors (17362710292).

18427099088 is a wasteful number, since it uses less digits than its factorization.

18427099088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2816294 (or 2816288 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 56.

The spelling of 18427099088 in words is "eighteen billion, four hundred twenty-seven million, ninety-nine thousand, eighty-eight".