18446626822 has 12 divisors (see below), whose sum is σ = 29962125180. Its totient is φ = 8513827608.

The previous prime is 18446626817. The next prime is 18446626823. The reversal of 18446626822 is 22862664481.

It is a super-2 number, since 2×18446626822² (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 (18446626823) 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 5 ways as a sum of consecutive naturals, for example, 27287572 + ... + 27288247.

It is an arithmetic number, because the mean of its divisors is an integer number (2496843765).

Almost surely, 2^18446626822 is an apocalyptic number.

18446626822 is a deficient number, since it is larger than the sum of its proper divisors (11515498358).

18446626822 is a wasteful number, since it uses less digits than its factorization.

18446626822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54575847 (or 54575834 counting only the distinct ones).

The product of its digits is 1769472, while the sum is 49.

The spelling of 18446626822 in words is "eighteen billion, four hundred forty-six million, six hundred twenty-six thousand, eight hundred twenty-two".