26686763630834 has 12 divisors (see below), whose sum is σ = 42247882037214. Its totient is φ = 12641098561632.

The previous prime is 26686763630759. The next prime is 26686763630851. The reversal of 26686763630834 is 43803636768662.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 22981927838809 + 3704835792025 = 4793947^2 + 1924795^2 .

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 18481137527 + ... + 18481138970.

Almost surely, 2^{26686763630834} is an apocalyptic number.

26686763630834 is a deficient number, since it is larger than the sum of its proper divisors (15561118406380).

26686763630834 is a wasteful number, since it uses less digits than its factorization.

26686763630834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36962276537 (or 36962276518 counting only the distinct ones).

The product of its (nonzero) digits is 752467968, while the sum is 68.

The spelling of 26686763630834 in words is "twenty-six trillion, six hundred eighty-six billion, seven hundred sixty-three million, six hundred thirty thousand, eight hundred thirty-four".