26434120211 has 2 divisors, whose sum is σ = 26434120212. Its totient is φ = 26434120210.

The previous prime is 26434120189. The next prime is 26434120241. The reversal of 26434120211 is 11202143462.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26434120211 is a prime.

It is a super-2 number, since 2×26434120211² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (26434120241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13217060105 + 13217060106.

It is an arithmetic number, because the mean of its divisors is an integer number (13217060106).

Almost surely, 2^26434120211 is an apocalyptic number.

26434120211 is a deficient number, since it is larger than the sum of its proper divisors (1).

26434120211 is an equidigital number, since it uses as much as digits as its factorization.

26434120211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 26434120211 its reverse (11202143462), we get a palindrome (37636263673).

The spelling of 26434120211 in words is "twenty-six billion, four hundred thirty-four million, one hundred twenty thousand, two hundred eleven".