22786864469 has 2 divisors, whose sum is σ = 22786864470. Its totient is φ = 22786864468.

The previous prime is 22786864439. The next prime is 22786864493. The reversal of 22786864469 is 96446868722.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13004665444 + 9782199025 = 114038^2 + 98905^2 .

It is a cyclic number.

It is not a de Polignac number, because 22786864469 - 2⁸ = 22786864213 is a prime.

It is a super-2 number, since 2×22786864469² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22786864439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11393432234 + 11393432235.

It is an arithmetic number, because the mean of its divisors is an integer number (11393432235).

Almost surely, 2^22786864469 is an apocalyptic number.

It is an amenable number.

22786864469 is a deficient number, since it is larger than the sum of its proper divisors (1).

22786864469 is an equidigital number, since it uses as much as digits as its factorization.

22786864469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 55738368, while the sum is 62.

The spelling of 22786864469 in words is "twenty-two billion, seven hundred eighty-six million, eight hundred sixty-four thousand, four hundred sixty-nine".