26869331677 has 2 divisors, whose sum is σ = 26869331678. Its totient is φ = 26869331676.

The previous prime is 26869331663. The next prime is 26869331681. The reversal of 26869331677 is 77613396862.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19571730201 + 7297601476 = 139899^2 + 85426^2 .

It is a cyclic number.

It is not a de Polignac number, because 26869331677 - 2⁷ = 26869331549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26869331647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13434665838 + 13434665839.

It is an arithmetic number, because the mean of its divisors is an integer number (13434665839).

Almost surely, 2^26869331677 is an apocalyptic number.

It is an amenable number.

26869331677 is a deficient number, since it is larger than the sum of its proper divisors (1).

26869331677 is an equidigital number, since it uses as much as digits as its factorization.

26869331677 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13716864, while the sum is 58.

The spelling of 26869331677 in words is "twenty-six billion, eight hundred sixty-nine million, three hundred thirty-one thousand, six hundred seventy-seven".