22958121689 has 4 divisors (see below), whose sum is σ = 22958751156. Its totient is φ = 22957492224.

The previous prime is 22958121673. The next prime is 22958121709. The reversal of 22958121689 is 98612185922.

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 22715011225 + 243110464 = 150715^2 + 15592^2 .

It is a cyclic number.

It is not a de Polignac number, because 22958121689 - 2⁴ = 22958121673 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 22958121689.

It is not an unprimeable number, because it can be changed into a prime (22958121649) 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, 256424 + ... + 334169.

It is an arithmetic number, because the mean of its divisors is an integer number (5739687789).

Almost surely, 2^22958121689 is an apocalyptic number.

It is an amenable number.

22958121689 is a deficient number, since it is larger than the sum of its proper divisors (629467).

22958121689 is an equidigital number, since it uses as much as digits as its factorization.

22958121689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629466.

The product of its digits is 1244160, while the sum is 53.

The spelling of 22958121689 in words is "twenty-two billion, nine hundred fifty-eight million, one hundred twenty-one thousand, six hundred eighty-nine".