26743506551 has 2 divisors, whose sum is σ = 26743506552. Its totient is φ = 26743506550.

The previous prime is 26743506481. The next prime is 26743506577. The reversal of 26743506551 is 15560534762.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26743506551 - 2²² = 26739312247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26743506851) 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, 13371753275 + 13371753276.

It is an arithmetic number, because the mean of its divisors is an integer number (13371753276).

Almost surely, 2^26743506551 is an apocalyptic number.

26743506551 is a deficient number, since it is larger than the sum of its proper divisors (1).

26743506551 is an equidigital number, since it uses as much as digits as its factorization.

26743506551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756000, while the sum is 44.

The spelling of 26743506551 in words is "twenty-six billion, seven hundred forty-three million, five hundred six thousand, five hundred fifty-one".