18227341534689 has 32 divisors (see below), whose sum is σ = 30882795171840. Its totient is φ = 10408304097936.

The previous prime is 18227341534681. The next prime is 18227341534691. The reversal of 18227341534689 is 98643514372281.

It is a happy number.

18227341534689 is a `hidden beast` number, since 1 + 8 + 2 + 2 + 7 + 34 + 1 + 534 + 68 + 9 = 666.

It is not a de Polignac number, because 18227341534689 - 2³ = 18227341534681 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (18227341534681) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33617547 + ... + 34155440.

It is an arithmetic number, because the mean of its divisors is an integer number (965087349120).

Almost surely, 2^{18227341534689} is an apocalyptic number.

It is an amenable number.

18227341534689 is a deficient number, since it is larger than the sum of its proper divisors (12655453637151).

18227341534689 is a wasteful number, since it uses less digits than its factorization.

18227341534689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67774426 (or 67774420 counting only the distinct ones).

The product of its digits is 69672960, while the sum is 63.

The spelling of 18227341534689 in words is "eighteen trillion, two hundred twenty-seven billion, three hundred forty-one million, five hundred thirty-four thousand, six hundred eighty-nine".