22889889791 has 2 divisors, whose sum is σ = 22889889792. Its totient is φ = 22889889790.

The previous prime is 22889889787. The next prime is 22889889821. The reversal of 22889889791 is 19798898822.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22889889791 - 2² = 22889889787 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22889889761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11444944895 + 11444944896.

It is an arithmetic number, because the mean of its divisors is an integer number (11444944896).

Almost surely, 2^22889889791 is an apocalyptic number.

22889889791 is a deficient number, since it is larger than the sum of its proper divisors (1).

22889889791 is an equidigital number, since it uses as much as digits as its factorization.

22889889791 is an evil number, because the sum of its binary digits is even.

The product of its digits is 83607552, while the sum is 71.

The spelling of 22889889791 in words is "twenty-two billion, eight hundred eighty-nine million, eight hundred eighty-nine thousand, seven hundred ninety-one".