22691367859 has 2 divisors, whose sum is σ = 22691367860. Its totient is φ = 22691367858.

The previous prime is 22691367851. The next prime is 22691367917. The reversal of 22691367859 is 95876319622.

It is an a-pointer prime, because the next prime (22691367917) can be obtained adding 22691367859 to its sum of digits (58).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22691367859 - 2³ = 22691367851 is a prime.

It is not a weakly prime, because it can be changed into another prime (22691367851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11345683929 + 11345683930.

It is an arithmetic number, because the mean of its divisors is an integer number (11345683930).

Almost surely, 2^22691367859 is an apocalyptic number.

22691367859 is a deficient number, since it is larger than the sum of its proper divisors (1).

22691367859 is an equidigital number, since it uses as much as digits as its factorization.

22691367859 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9797760, while the sum is 58.

The spelling of 22691367859 in words is "twenty-two billion, six hundred ninety-one million, three hundred sixty-seven thousand, eight hundred fifty-nine".