13224467777 has 2 divisors, whose sum is σ = 13224467778. Its totient is φ = 13224467776.

The previous prime is 13224467731. The next prime is 13224467779. The reversal of 13224467777 is 77776442231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12467062336 + 757405441 = 111656^2 + 27521^2 .

It is a cyclic number.

It is not a de Polignac number, because 13224467777 - 2⁸ = 13224467521 is a prime.

It is a super-2 number, since 2×13224467777² (a number of 21 digits) contains 22 as substring.

Together with 13224467779, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13224467779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6612233888 + 6612233889.

It is an arithmetic number, because the mean of its divisors is an integer number (6612233889).

Almost surely, 2^13224467777 is an apocalyptic number.

It is an amenable number.

13224467777 is a deficient number, since it is larger than the sum of its proper divisors (1).

13224467777 is an equidigital number, since it uses as much as digits as its factorization.

13224467777 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2765952, while the sum is 50.

The spelling of 13224467777 in words is "thirteen billion, two hundred twenty-four million, four hundred sixty-seven thousand, seven hundred seventy-seven".