22426026197 has 2 divisors, whose sum is σ = 22426026198. Its totient is φ = 22426026196.

The previous prime is 22426026149. The next prime is 22426026251. The reversal of 22426026197 is 79162062422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19754583601 + 2671442596 = 140551^2 + 51686^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22426026197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22426022197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11213013098 + 11213013099.

It is an arithmetic number, because the mean of its divisors is an integer number (11213013099).

Almost surely, 2^22426026197 is an apocalyptic number.

It is an amenable number.

22426026197 is a deficient number, since it is larger than the sum of its proper divisors (1).

22426026197 is an equidigital number, since it uses as much as digits as its factorization.

22426026197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 41.

The spelling of 22426026197 in words is "twenty-two billion, four hundred twenty-six million, twenty-six thousand, one hundred ninety-seven".