26769917929 has 2 divisors, whose sum is σ = 26769917930. Its totient is φ = 26769917928.

The previous prime is 26769917927. The next prime is 26769917963. The reversal of 26769917929 is 92971996762.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24602549904 + 2167368025 = 156852^2 + 46555^2 .

It is a cyclic number.

It is not a de Polignac number, because 26769917929 - 2¹ = 26769917927 is a prime.

Together with 26769917927, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (26769917921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13384958964 + 13384958965.

It is an arithmetic number, because the mean of its divisors is an integer number (13384958965).

Almost surely, 2^26769917929 is an apocalyptic number.

It is an amenable number.

26769917929 is a deficient number, since it is larger than the sum of its proper divisors (1).

26769917929 is an equidigital number, since it uses as much as digits as its factorization.

26769917929 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46294416, while the sum is 67.

The spelling of 26769917929 in words is "twenty-six billion, seven hundred sixty-nine million, nine hundred seventeen thousand, nine hundred twenty-nine".