26471666779 has 2 divisors, whose sum is σ = 26471666780. Its totient is φ = 26471666778.

The previous prime is 26471666743. The next prime is 26471666827. The reversal of 26471666779 is 97766617462.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26471666779 - 2²⁵ = 26438112347 is a prime.

It is not a weakly prime, because it can be changed into another prime (26471666729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13235833389 + 13235833390.

It is an arithmetic number, because the mean of its divisors is an integer number (13235833390).

Almost surely, 2^26471666779 is an apocalyptic number.

26471666779 is a deficient number, since it is larger than the sum of its proper divisors (1).

26471666779 is an equidigital number, since it uses as much as digits as its factorization.

26471666779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32006016, while the sum is 61.

The spelling of 26471666779 in words is "twenty-six billion, four hundred seventy-one million, six hundred sixty-six thousand, seven hundred seventy-nine".