422109455785 has 4 divisors (see below), whose sum is σ = 506531346948. Its totient is φ = 337687564624.

The previous prime is 422109455773. The next prime is 422109455791. The reversal of 422109455785 is 587554901224.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 210001311081 + 212108144704 = 458259^2 + 460552^2 .

It is a cyclic number.

It is not a de Polignac number, because 422109455785 - 2¹¹ = 422109453737 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42210945574 + ... + 42210945583.

It is an arithmetic number, because the mean of its divisors is an integer number (126632836737).

Almost surely, 2^422109455785 is an apocalyptic number.

It is an amenable number.

422109455785 is a deficient number, since it is larger than the sum of its proper divisors (84421891163).

422109455785 is an equidigital number, since it uses as much as digits as its factorization.

422109455785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84421891162.

The product of its (nonzero) digits is 4032000, while the sum is 52.

The spelling of 422109455785 in words is "four hundred twenty-two billion, one hundred nine million, four hundred fifty-five thousand, seven hundred eighty-five".