22091855783 has 2 divisors, whose sum is σ = 22091855784. Its totient is φ = 22091855782.

The previous prime is 22091855711. The next prime is 22091855789. The reversal of 22091855783 is 38755819022.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22091855783 - 2¹⁶ = 22091790247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22091855789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11045927891 + 11045927892.

It is an arithmetic number, because the mean of its divisors is an integer number (11045927892).

Almost surely, 2^22091855783 is an apocalyptic number.

22091855783 is a deficient number, since it is larger than the sum of its proper divisors (1).

22091855783 is an equidigital number, since it uses as much as digits as its factorization.

22091855783 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1209600, while the sum is 50.

The spelling of 22091855783 in words is "twenty-two billion, ninety-one million, eight hundred fifty-five thousand, seven hundred eighty-three".