18422043717 has 16 divisors (see below), whose sum is σ = 30623657472. Its totient is φ = 9569892720.

The previous prime is 18422043671. The next prime is 18422043749. The reversal of 18422043717 is 71734022481.

It is not a de Polignac number, because 18422043717 - 2¹⁴ = 18422027333 is a prime.

It is a super-2 number, since 2×18422043717² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18422043767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39874323 + ... + 39874784.

It is an arithmetic number, because the mean of its divisors is an integer number (1913978592).

Almost surely, 2^18422043717 is an apocalyptic number.

It is an amenable number.

18422043717 is a deficient number, since it is larger than the sum of its proper divisors (12201613755).

18422043717 is a wasteful number, since it uses less digits than its factorization.

18422043717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79749128.

The product of its (nonzero) digits is 75264, while the sum is 39.

The spelling of 18422043717 in words is "eighteen billion, four hundred twenty-two million, forty-three thousand, seven hundred seventeen".