18422885947 has 2 divisors, whose sum is σ = 18422885948. Its totient is φ = 18422885946.

The previous prime is 18422885909. The next prime is 18422885977. The reversal of 18422885947 is 74958822481.

It is a strong prime.

It is an emirp because it is prime and its reverse (74958822481) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18422885947 - 2¹⁵ = 18422853179 is a prime.

It is a super-3 number, since 3×18422885947³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18422885891 and 18422885900.

It is not a weakly prime, because it can be changed into another prime (18422885977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9211442973 + 9211442974.

It is an arithmetic number, because the mean of its divisors is an integer number (9211442974).

Almost surely, 2^18422885947 is an apocalyptic number.

18422885947 is a deficient number, since it is larger than the sum of its proper divisors (1).

18422885947 is an equidigital number, since it uses as much as digits as its factorization.

18422885947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10321920, while the sum is 58.

The spelling of 18422885947 in words is "eighteen billion, four hundred twenty-two million, eight hundred eighty-five thousand, nine hundred forty-seven".