26545345207 has 2 divisors, whose sum is σ = 26545345208. Its totient is φ = 26545345206.

The previous prime is 26545345159. The next prime is 26545345223. The reversal of 26545345207 is 70254354562.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26545345207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26545345507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13272672603 + 13272672604.

It is an arithmetic number, because the mean of its divisors is an integer number (13272672604).

Almost surely, 2^26545345207 is an apocalyptic number.

26545345207 is a deficient number, since it is larger than the sum of its proper divisors (1).

26545345207 is an equidigital number, since it uses as much as digits as its factorization.

26545345207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008000, while the sum is 43.

Adding to 26545345207 its reverse (70254354562), we get a palindrome (96799699769).

The spelling of 26545345207 in words is "twenty-six billion, five hundred forty-five million, three hundred forty-five thousand, two hundred seven".