26762368861 has 2 divisors, whose sum is σ = 26762368862. Its totient is φ = 26762368860.

The previous prime is 26762368757. The next prime is 26762368873. The reversal of 26762368861 is 16886326762.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26742387961 + 19980900 = 163531^2 + 4470^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26762368861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26762368891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13381184430 + 13381184431.

It is an arithmetic number, because the mean of its divisors is an integer number (13381184431).

Almost surely, 2^26762368861 is an apocalyptic number.

It is an amenable number.

26762368861 is a deficient number, since it is larger than the sum of its proper divisors (1).

26762368861 is an equidigital number, since it uses as much as digits as its factorization.

26762368861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6967296, while the sum is 55.

The spelling of 26762368861 in words is "twenty-six billion, seven hundred sixty-two million, three hundred sixty-eight thousand, eight hundred sixty-one".