26545466539 has 2 divisors, whose sum is σ = 26545466540. Its totient is φ = 26545466538.

The previous prime is 26545466513. The next prime is 26545466573. The reversal of 26545466539 is 93566454562.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26545466539 - 2¹³ = 26545458347 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26545466539.

It is not a weakly prime, because it can be changed into another prime (26545466509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13272733269 + 13272733270.

It is an arithmetic number, because the mean of its divisors is an integer number (13272733270).

Almost surely, 2^26545466539 is an apocalyptic number.

26545466539 is a deficient number, since it is larger than the sum of its proper divisors (1).

26545466539 is an equidigital number, since it uses as much as digits as its factorization.

26545466539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23328000, while the sum is 55.

The spelling of 26545466539 in words is "twenty-six billion, five hundred forty-five million, four hundred sixty-six thousand, five hundred thirty-nine".