422445542623 has 12 divisors (see below), whose sum is σ = 457519346760. Its totient is φ = 389882971296.

The previous prime is 422445542527. The next prime is 422445542671. The reversal of 422445542623 is 326245544224.

It is not a de Polignac number, because 422445542623 - 2¹³ = 422445534431 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 422445542623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422445542683) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 789973 + ... + 1212001.

It is an arithmetic number, because the mean of its divisors is an integer number (38126612230).

Almost surely, 2^422445542623 is an apocalyptic number.

422445542623 is a deficient number, since it is larger than the sum of its proper divisors (35073804137).

422445542623 is a wasteful number, since it uses less digits than its factorization.

422445542623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427978 (or 427965 counting only the distinct ones).

The product of its digits is 1843200, while the sum is 43.

The spelling of 422445542623 in words is "four hundred twenty-two billion, four hundred forty-five million, five hundred forty-two thousand, six hundred twenty-three".