26769494393813 has 4 divisors (see below), whose sum is σ = 26770043211468. Its totient is φ = 26768945576160.

The previous prime is 26769494393779. The next prime is 26769494393833. The reversal of 26769494393813 is 31839349496762.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14331691061284 + 12437803332529 = 3785722^2 + 3526727^2 .

It is a cyclic number.

It is not a de Polignac number, because 26769494393813 - 2⁶ = 26769494393749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26769494393833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 274335656 + ... + 274433217.

It is an arithmetic number, because the mean of its divisors is an integer number (6692510802867).

Almost surely, 2^{26769494393813} is an apocalyptic number.

It is an amenable number.

26769494393813 is a deficient number, since it is larger than the sum of its proper divisors (548817655).

26769494393813 is an equidigital number, since it uses as much as digits as its factorization.

26769494393813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548817654.

The product of its digits is 1269789696, while the sum is 74.

The spelling of 26769494393813 in words is "twenty-six trillion, seven hundred sixty-nine billion, four hundred ninety-four million, three hundred ninety-three thousand, eight hundred thirteen".