22423423885 has 4 divisors (see below), whose sum is σ = 26908108668. Its totient is φ = 17938739104.

The previous prime is 22423423849. The next prime is 22423423889. The reversal of 22423423885 is 58832432422.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58832432422 = 2 ⋅29416216211.

It can be written as a sum of positive squares in 2 ways, for example, as 15587772201 + 6835651684 = 124851^2 + 82678^2 .

It is a cyclic number.

It is not a de Polignac number, because 22423423885 - 2¹⁷ = 22423292813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22423423889) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2242342384 + ... + 2242342393.

It is an arithmetic number, because the mean of its divisors is an integer number (6727027167).

Almost surely, 2^22423423885 is an apocalyptic number.

It is an amenable number.

22423423885 is a deficient number, since it is larger than the sum of its proper divisors (4484684783).

22423423885 is an equidigital number, since it uses as much as digits as its factorization.

22423423885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4484684782.

The product of its digits is 737280, while the sum is 43.

The spelling of 22423423885 in words is "twenty-two billion, four hundred twenty-three million, four hundred twenty-three thousand, eight hundred eighty-five".