26723555191 has 2 divisors, whose sum is σ = 26723555192. Its totient is φ = 26723555190.

The previous prime is 26723555149. The next prime is 26723555197. The reversal of 26723555191 is 19155532762.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26723555191 - 2¹⁹ = 26723030903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26723555197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13361777595 + 13361777596.

It is an arithmetic number, because the mean of its divisors is an integer number (13361777596).

Almost surely, 2^26723555191 is an apocalyptic number.

26723555191 is a deficient number, since it is larger than the sum of its proper divisors (1).

26723555191 is an equidigital number, since it uses as much as digits as its factorization.

26723555191 is an evil number, because the sum of its binary digits is even.

The product of its digits is 567000, while the sum is 46.

The spelling of 26723555191 in words is "twenty-six billion, seven hundred twenty-three million, five hundred fifty-five thousand, one hundred ninety-one".