422606517820 has 48 divisors (see below), whose sum is σ = 893706750720. Its totient is φ = 167856758784.

The previous prime is 422606517787. The next prime is 422606517937. The reversal of 422606517820 is 28715606224.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4877436 + ... + 4963324.

It is an arithmetic number, because the mean of its divisors is an integer number (18618890640).

Almost surely, 2^422606517820 is an apocalyptic number.

It is an amenable number.

422606517820 is an abundant number, since it is smaller than the sum of its proper divisors (471100232900).

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

422606517820 is a wasteful number, since it uses less digits than its factorization.

422606517820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87622 (or 87620 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 43.

The spelling of 422606517820 in words is "four hundred twenty-two billion, six hundred six million, five hundred seventeen thousand, eight hundred twenty".