18353550740039 has 8 divisors (see below), whose sum is σ = 19433914048800. Its totient is φ = 17273269950976.

The previous prime is 18353550740027. The next prime is 18353550740099. The reversal of 18353550740039 is 93004705535381.

It is a happy number.

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-18353550740039 is a prime.

It is a super-2 number, since 2×18353550740039² (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 (18353550740099) 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, 20171714 + ... + 21061935.

It is an arithmetic number, because the mean of its divisors is an integer number (2429239256100).

Almost surely, 2^{18353550740039} is an apocalyptic number.

18353550740039 is a deficient number, since it is larger than the sum of its proper divisors (1080363308761).

18353550740039 is a wasteful number, since it uses less digits than its factorization.

18353550740039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41259849.

The product of its (nonzero) digits is 6804000, while the sum is 53.

The spelling of 18353550740039 in words is "eighteen trillion, three hundred fifty-three billion, five hundred fifty million, seven hundred forty thousand, thirty-nine".