26768377386769 has 2 divisors, whose sum is σ = 26768377386770. Its totient is φ = 26768377386768.

The previous prime is 26768377386731. The next prime is 26768377386859. The reversal of 26768377386769 is 96768377386762.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19607963335744 + 7160414051025 = 4428088^2 + 2675895^2 .

It is a cyclic number.

It is not a de Polignac number, because 26768377386769 - 2³¹ = 26766229903121 is a prime.

It is a super-2 number, since 2×26768377386769² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (26768377386169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13384188693384 + 13384188693385.

It is an arithmetic number, because the mean of its divisors is an integer number (13384188693385).

Almost surely, 2^{26768377386769} is an apocalyptic number.

It is an amenable number.

26768377386769 is a deficient number, since it is larger than the sum of its proper divisors (1).

26768377386769 is an equidigital number, since it uses as much as digits as its factorization.

26768377386769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32262064128, while the sum is 85.

The spelling of 26768377386769 in words is "twenty-six trillion, seven hundred sixty-eight billion, three hundred seventy-seven million, three hundred eighty-six thousand, seven hundred sixty-nine".