422664862806 has 80 divisors (see below), whose sum is σ = 963461822400. Its totient is φ = 138453304752.

The previous prime is 422664862769. The next prime is 422664862817. The reversal of 422664862806 is 608268466224.

422664862806 is a `hidden beast` number, since 4 + 2 + 2 + 6 + 6 + 4 + 8 + 628 + 0 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 38408101 + ... + 38419103.

It is an arithmetic number, because the mean of its divisors is an integer number (12043272780).

Almost surely, 2^422664862806 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 422664862806, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (481730911200).

422664862806 is an abundant number, since it is smaller than the sum of its proper divisors (540796959594).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

422664862806 is a wasteful number, since it uses less digits than its factorization.

422664862806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15095 (or 15086 counting only the distinct ones).

The product of its (nonzero) digits is 10616832, while the sum is 54.

The spelling of 422664862806 in words is "four hundred twenty-two billion, six hundred sixty-four million, eight hundred sixty-two thousand, eight hundred six".