26453442667 has 2 divisors, whose sum is σ = 26453442668. Its totient is φ = 26453442666.

The previous prime is 26453442649. The next prime is 26453442787. The reversal of 26453442667 is 76624435462.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26453442667 - 2⁷ = 26453442539 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26453442667.

It is not a weakly prime, because it can be changed into another prime (26453442647) 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, 13226721333 + 13226721334.

It is an arithmetic number, because the mean of its divisors is an integer number (13226721334).

Almost surely, 2^26453442667 is an apocalyptic number.

26453442667 is a deficient number, since it is larger than the sum of its proper divisors (1).

26453442667 is an equidigital number, since it uses as much as digits as its factorization.

26453442667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5806080, while the sum is 49.

The spelling of 26453442667 in words is "twenty-six billion, four hundred fifty-three million, four hundred forty-two thousand, six hundred sixty-seven".