26013604013 has 2 divisors, whose sum is σ = 26013604014. Its totient is φ = 26013604012.

The previous prime is 26013603923. The next prime is 26013604081. The reversal of 26013604013 is 31040631062.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24174652324 + 1838951689 = 155482^2 + 42883^2 .

It is a cyclic number.

It is not a de Polignac number, because 26013604013 - 2¹² = 26013599917 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26013604613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13006802006 + 13006802007.

It is an arithmetic number, because the mean of its divisors is an integer number (13006802007).

Almost surely, 2^26013604013 is an apocalyptic number.

It is an amenable number.

26013604013 is a deficient number, since it is larger than the sum of its proper divisors (1).

26013604013 is an equidigital number, since it uses as much as digits as its factorization.

26013604013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 26.

The spelling of 26013604013 in words is "twenty-six billion, thirteen million, six hundred four thousand, thirteen".