26012421011 has 2 divisors, whose sum is σ = 26012421012. Its totient is φ = 26012421010.

The previous prime is 26012420999. The next prime is 26012421079. The reversal of 26012421011 is 11012421062.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26012421011 is a prime.

It is not a weakly prime, because it can be changed into another prime (26012421311) 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, 13006210505 + 13006210506.

It is an arithmetic number, because the mean of its divisors is an integer number (13006210506).

Almost surely, 2^26012421011 is an apocalyptic number.

26012421011 is a deficient number, since it is larger than the sum of its proper divisors (1).

26012421011 is an equidigital number, since it uses as much as digits as its factorization.

26012421011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 26012421011 its reverse (11012421062), we get a palindrome (37024842073).

The spelling of 26012421011 in words is "twenty-six billion, twelve million, four hundred twenty-one thousand, eleven".