26411123521 has 2 divisors, whose sum is σ = 26411123522. Its totient is φ = 26411123520.

The previous prime is 26411123509. The next prime is 26411123561. The reversal of 26411123521 is 12532111462.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20919572496 + 5491551025 = 144636^2 + 74105^2 .

It is a cyclic number.

It is not a de Polignac number, because 26411123521 - 2¹⁹ = 26410599233 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26411123521.

It is not a weakly prime, because it can be changed into another prime (26411123561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13205561760 + 13205561761.

It is an arithmetic number, because the mean of its divisors is an integer number (13205561761).

Almost surely, 2^26411123521 is an apocalyptic number.

It is an amenable number.

26411123521 is a deficient number, since it is larger than the sum of its proper divisors (1).

26411123521 is an equidigital number, since it uses as much as digits as its factorization.

26411123521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2880, while the sum is 28.

Adding to 26411123521 its reverse (12532111462), we get a palindrome (38943234983).

The spelling of 26411123521 in words is "twenty-six billion, four hundred eleven million, one hundred twenty-three thousand, five hundred twenty-one".