22778040269 has 2 divisors, whose sum is σ = 22778040270. Its totient is φ = 22778040268.

The previous prime is 22778040247. The next prime is 22778040331. The reversal of 22778040269 is 96204087722.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21917322025 + 860718244 = 148045^2 + 29338^2 .

It is a cyclic number.

It is not a de Polignac number, because 22778040269 - 2⁸ = 22778040013 is a prime.

It is a super-2 number, since 2×22778040269² (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 (22778000269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11389020134 + 11389020135.

It is an arithmetic number, because the mean of its divisors is an integer number (11389020135).

Almost surely, 2^22778040269 is an apocalyptic number.

It is an amenable number.

22778040269 is a deficient number, since it is larger than the sum of its proper divisors (1).

22778040269 is an equidigital number, since it uses as much as digits as its factorization.

22778040269 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 677376, while the sum is 47.

The spelling of 22778040269 in words is "twenty-two billion, seven hundred seventy-eight million, forty thousand, two hundred sixty-nine".