26690567933 has 2 divisors, whose sum is σ = 26690567934. Its totient is φ = 26690567932.

The previous prime is 26690567903. The next prime is 26690567951. The reversal of 26690567933 is 33976509662.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26521099609 + 169468324 = 162853^2 + 13018^2 .

It is a cyclic number.

It is not a de Polignac number, because 26690567933 - 2²² = 26686373629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26690567903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13345283966 + 13345283967.

It is an arithmetic number, because the mean of its divisors is an integer number (13345283967).

Almost surely, 2^26690567933 is an apocalyptic number.

It is an amenable number.

26690567933 is a deficient number, since it is larger than the sum of its proper divisors (1).

26690567933 is an equidigital number, since it uses as much as digits as its factorization.

26690567933 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11022480, while the sum is 56.

The spelling of 26690567933 in words is "twenty-six billion, six hundred ninety million, five hundred sixty-seven thousand, nine hundred thirty-three".