18285445472039 has 8 divisors (see below), whose sum is σ = 18386795285040. Its totient is φ = 18184099233600.

The previous prime is 18285445472029. The next prime is 18285445472053. The reversal of 18285445472039 is 93027454458281.

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 18285445472039 - 2⁴ = 18285445472023 is a prime.

It is a super-2 number, since 2×18285445472039² (a number of 27 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 (18285445472009) 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, 9713492 + ... + 11442150.

It is an arithmetic number, because the mean of its divisors is an integer number (2298349410630).

Almost surely, 2^{18285445472039} is an apocalyptic number.

18285445472039 is a deficient number, since it is larger than the sum of its proper divisors (101349813001).

18285445472039 is a wasteful number, since it uses less digits than its factorization.

18285445472039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1787281.

The product of its (nonzero) digits is 77414400, while the sum is 62.

The spelling of 18285445472039 in words is "eighteen trillion, two hundred eighty-five billion, four hundred forty-five million, four hundred seventy-two thousand, thirty-nine".