26491134179 has 2 divisors, whose sum is σ = 26491134180. Its totient is φ = 26491134178.

The previous prime is 26491134133. The next prime is 26491134193. The reversal of 26491134179 is 97143119462.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26491134179 is a prime.

It is not a weakly prime, because it can be changed into another prime (26491134079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13245567089 + 13245567090.

It is an arithmetic number, because the mean of its divisors is an integer number (13245567090).

Almost surely, 2^26491134179 is an apocalyptic number.

26491134179 is a deficient number, since it is larger than the sum of its proper divisors (1).

26491134179 is an equidigital number, since it uses as much as digits as its factorization.

26491134179 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 47.

The spelling of 26491134179 in words is "twenty-six billion, four hundred ninety-one million, one hundred thirty-four thousand, one hundred seventy-nine".