18353500220219 has 8 divisors (see below), whose sum is σ = 19332159090240. Its totient is φ = 17376109867656.

The previous prime is 18353500220207. The next prime is 18353500220227. The reversal of 18353500220219 is 91202200535381.

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 18353500220219 - 2⁴⁴ = 761314175803 is a prime.

It is a super-2 number, since 2×18353500220219² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18353500220249) 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, 317099657 + ... + 317157530.

It is an arithmetic number, because the mean of its divisors is an integer number (2416519886280).

Almost surely, 2^{18353500220219} is an apocalyptic number.

18353500220219 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

18353500220219 is a deficient number, since it is larger than the sum of its proper divisors (978658870021).

18353500220219 is a wasteful number, since it uses less digits than its factorization.

18353500220219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634258729.

The product of its (nonzero) digits is 129600, while the sum is 41.

The spelling of 18353500220219 in words is "eighteen trillion, three hundred fifty-three billion, five hundred million, two hundred twenty thousand, two hundred nineteen".