18007132369 has 8 divisors (see below), whose sum is σ = 18076727232. Its totient is φ = 17937580080.

The previous prime is 18007132357. The next prime is 18007132387. The reversal of 18007132369 is 96323170081.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18007132369 is a prime.

It is a super-2 number, since 2×18007132369² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18007132669) 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, 1030227 + ... + 1047559.

It is an arithmetic number, because the mean of its divisors is an integer number (2259590904).

Almost surely, 2^18007132369 is an apocalyptic number.

It is an amenable number.

18007132369 is a deficient number, since it is larger than the sum of its proper divisors (69594863).

18007132369 is a wasteful number, since it uses less digits than its factorization.

18007132369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21287.

The product of its (nonzero) digits is 54432, while the sum is 40.

The spelling of 18007132369 in words is "eighteen billion, seven million, one hundred thirty-two thousand, three hundred sixty-nine".