26261464291 has 2 divisors, whose sum is σ = 26261464292. Its totient is φ = 26261464290.

The previous prime is 26261464277. The next prime is 26261464301. The reversal of 26261464291 is 19246416262.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26261464291 is a prime.

It is not a weakly prime, because it can be changed into another prime (26261464891) 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, 13130732145 + 13130732146.

It is an arithmetic number, because the mean of its divisors is an integer number (13130732146).

Almost surely, 2^26261464291 is an apocalyptic number.

26261464291 is a deficient number, since it is larger than the sum of its proper divisors (1).

26261464291 is an equidigital number, since it uses as much as digits as its factorization.

26261464291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 248832, while the sum is 43.

The spelling of 26261464291 in words is "twenty-six billion, two hundred sixty-one million, four hundred sixty-four thousand, two hundred ninety-one".