18269472689 has 8 divisors (see below), whose sum is σ = 19703299392. Its totient is φ = 16839714960.

The previous prime is 18269472679. The next prime is 18269472691. The reversal of 18269472689 is 98627496281.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18269472689 - 2⁴ = 18269472673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18269472679) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1007909 + ... + 1025874.

It is an arithmetic number, because the mean of its divisors is an integer number (2462912424).

Almost surely, 2^18269472689 is an apocalyptic number.

It is an amenable number.

18269472689 is a deficient number, since it is larger than the sum of its proper divisors (1433826703).

18269472689 is a wasteful number, since it uses less digits than its factorization.

18269472689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2034487.

The product of its digits is 20901888, while the sum is 62.

The spelling of 18269472689 in words is "eighteen billion, two hundred sixty-nine million, four hundred seventy-two thousand, six hundred eighty-nine".