422972218845 has 160 divisors (see below), whose sum is σ = 842400497664. Its totient is φ = 202152283200.

The previous prime is 422972218841. The next prime is 422972218909. The reversal of 422972218845 is 548812279224.

It is not a de Polignac number, because 422972218845 - 2² = 422972218841 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 422972218791 and 422972218800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422972218841) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 76859364 + ... + 76864866.

Almost surely, 2^422972218845 is an apocalyptic number.

422972218845 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

422972218845 is a deficient number, since it is larger than the sum of its proper divisors (419428278819).

422972218845 is an frugal number, since it uses more digits than its factorization.

422972218845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5617 (or 5593 counting only the distinct ones).

The product of its digits is 5160960, while the sum is 54.

The spelling of 422972218845 in words is "four hundred twenty-two billion, nine hundred seventy-two million, two hundred eighteen thousand, eight hundred forty-five".