26206515011 has 2 divisors, whose sum is σ = 26206515012. Its totient is φ = 26206515010.

The previous prime is 26206514989. The next prime is 26206515029. The reversal of 26206515011 is 11051560262.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26206515011 - 2²² = 26202320707 is a prime.

It is not a weakly prime, because it can be changed into another prime (26206515091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13103257505 + 13103257506.

It is an arithmetic number, because the mean of its divisors is an integer number (13103257506).

Almost surely, 2^26206515011 is an apocalyptic number.

26206515011 is a deficient number, since it is larger than the sum of its proper divisors (1).

26206515011 is an equidigital number, since it uses as much as digits as its factorization.

26206515011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 29.

The spelling of 26206515011 in words is "twenty-six billion, two hundred six million, five hundred fifteen thousand, eleven".