26450511121 has 2 divisors, whose sum is σ = 26450511122. Its totient is φ = 26450511120.

The previous prime is 26450511119. The next prime is 26450511167. The reversal of 26450511121 is 12111505462.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15751505025 + 10699006096 = 125505^2 + 103436^2 .

It is a cyclic number.

It is not a de Polignac number, because 26450511121 - 2¹ = 26450511119 is a prime.

Together with 26450511119, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 26450511121.

It is not a weakly prime, because it can be changed into another prime (26450511421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13225255560 + 13225255561.

It is an arithmetic number, because the mean of its divisors is an integer number (13225255561).

Almost surely, 2^26450511121 is an apocalyptic number.

It is an amenable number.

26450511121 is a deficient number, since it is larger than the sum of its proper divisors (1).

26450511121 is an equidigital number, since it uses as much as digits as its factorization.

26450511121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2400, while the sum is 28.

The spelling of 26450511121 in words is "twenty-six billion, four hundred fifty million, five hundred eleven thousand, one hundred twenty-one".