18245371269 has 16 divisors (see below), whose sum is σ = 24399872000. Its totient is φ = 12127282416.

The previous prime is 18245371231. The next prime is 18245371297. The reversal of 18245371269 is 96217354281.

It is not a de Polignac number, because 18245371269 - 2³¹ = 16097887621 is a prime.

It is a super-2 number, since 2×18245371269² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18245371169) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1419132 + ... + 1431930.

It is an arithmetic number, because the mean of its divisors is an integer number (1524992000).

Almost surely, 2^18245371269 is an apocalyptic number.

It is an amenable number.

18245371269 is a deficient number, since it is larger than the sum of its proper divisors (6154500731).

18245371269 is a wasteful number, since it uses less digits than its factorization.

18245371269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14184.

The product of its digits is 725760, while the sum is 48.

The spelling of 18245371269 in words is "eighteen billion, two hundred forty-five million, three hundred seventy-one thousand, two hundred sixty-nine".