26545988099 has 2 divisors, whose sum is σ = 26545988100. Its totient is φ = 26545988098.

The previous prime is 26545988083. The next prime is 26545988141. The reversal of 26545988099 is 99088954562.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26545988099 - 2⁴ = 26545988083 is a prime.

It is not a weakly prime, because it can be changed into another prime (26545988899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13272994049 + 13272994050.

It is an arithmetic number, because the mean of its divisors is an integer number (13272994050).

Almost surely, 2^26545988099 is an apocalyptic number.

26545988099 is a deficient number, since it is larger than the sum of its proper divisors (1).

26545988099 is an equidigital number, since it uses as much as digits as its factorization.

26545988099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 55987200, while the sum is 65.

The spelling of 26545988099 in words is "twenty-six billion, five hundred forty-five million, nine hundred eighty-eight thousand, ninety-nine".