22771487279 has 2 divisors, whose sum is σ = 22771487280. Its totient is φ = 22771487278.

The previous prime is 22771487269. The next prime is 22771487309. The reversal of 22771487279 is 97278417722.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22771487279 - 2²⁰ = 22770438703 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22771487269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11385743639 + 11385743640.

It is an arithmetic number, because the mean of its divisors is an integer number (11385743640).

Almost surely, 2^22771487279 is an apocalyptic number.

22771487279 is a deficient number, since it is larger than the sum of its proper divisors (1).

22771487279 is an equidigital number, since it uses as much as digits as its factorization.

22771487279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5531904, while the sum is 56.

The spelling of 22771487279 in words is "twenty-two billion, seven hundred seventy-one million, four hundred eighty-seven thousand, two hundred seventy-nine".