18544077088 has 24 divisors (see below), whose sum is σ = 38656220652. Its totient is φ = 8726624256.

The previous prime is 18544077077. The next prime is 18544077089. The reversal of 18544077088 is 88077044581.

It can be written as a sum of positive squares in 2 ways, for example, as 18390614544 + 153462544 = 135612^2 + 12388^2 .

It is not an unprimeable number, because it can be changed into a prime (18544077089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17043645 + ... + 17044732.

Almost surely, 2^18544077088 is an apocalyptic number.

It is an amenable number.

18544077088 is an abundant number, since it is smaller than the sum of its proper divisors (20112143564).

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

18544077088 is a wasteful number, since it uses less digits than its factorization.

18544077088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34088404 (or 34088396 counting only the distinct ones).

The product of its (nonzero) digits is 2007040, while the sum is 52.

The spelling of 18544077088 in words is "eighteen billion, five hundred forty-four million, seventy-seven thousand, eighty-eight".