22097697859 has 2 divisors, whose sum is σ = 22097697860. Its totient is φ = 22097697858.

The previous prime is 22097697829. The next prime is 22097697863. The reversal of 22097697859 is 95879679022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22097697859 - 2⁷ = 22097697731 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22097697859.

It is not a weakly prime, because it can be changed into another prime (22097697829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11048848929 + 11048848930.

It is an arithmetic number, because the mean of its divisors is an integer number (11048848930).

Almost surely, 2^22097697859 is an apocalyptic number.

22097697859 is a deficient number, since it is larger than the sum of its proper divisors (1).

22097697859 is an equidigital number, since it uses as much as digits as its factorization.

22097697859 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34292160, while the sum is 64.

The spelling of 22097697859 in words is "twenty-two billion, ninety-seven million, six hundred ninety-seven thousand, eight hundred fifty-nine".