22426004646 has 24 divisors (see below), whose sum is σ = 51147028920. Its totient is φ = 7081896096.

The previous prime is 22426004609. The next prime is 22426004647. The reversal of 22426004646 is 64640062422.

22426004646 is a `hidden beast` number, since 2 + 2 + 4 + 2 + 6 + 0 + 0 + 4 + 646 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 22426004646.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22426004647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32786215 + ... + 32786898.

It is an arithmetic number, because the mean of its divisors is an integer number (2131126205).

Almost surely, 2^22426004646 is an apocalyptic number.

22426004646 is an abundant number, since it is smaller than the sum of its proper divisors (28721024274).

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

22426004646 is a wasteful number, since it uses less digits than its factorization.

22426004646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65573140 (or 65573137 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 36.

The spelling of 22426004646 in words is "twenty-two billion, four hundred twenty-six million, four thousand, six hundred forty-six".