18269000027 has 4 divisors (see below), whose sum is σ = 19063304400. Its totient is φ = 17474695656.

The previous prime is 18269000021. The next prime is 18269000039. The reversal of 18269000027 is 72000096281.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 18269000027 - 2¹⁰ = 18268999003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18269000021) 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, 397152152 + ... + 397152197.

It is an arithmetic number, because the mean of its divisors is an integer number (4765826100).

Almost surely, 2^18269000027 is an apocalyptic number.

18269000027 is a deficient number, since it is larger than the sum of its proper divisors (794304373).

18269000027 is an equidigital number, since it uses as much as digits as its factorization.

18269000027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 794304372.

The product of its (nonzero) digits is 12096, while the sum is 35.

The spelling of 18269000027 in words is "eighteen billion, two hundred sixty-nine million, twenty-seven", and thus it is an aban number.