26689382033 has 16 divisors (see below), whose sum is σ = 29045440080. Its totient is φ = 24429926400.

The previous prime is 26689381991. The next prime is 26689382059. The reversal of 26689382033 is 33028398662.

It can be written as a sum of positive squares in 8 ways, for example, as 253223569 + 26436158464 = 15913^2 + 162592^2 .

It is a cyclic number.

It is not a de Polignac number, because 26689382033 - 2²⁸ = 26420946577 is a prime.

It is a super-2 number, since 2×26689382033² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26689342033) 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 15 ways as a sum of consecutive naturals, for example, 52298 + ... + 236883.

It is an arithmetic number, because the mean of its divisors is an integer number (1815340005).

Almost surely, 2^26689382033 is an apocalyptic number.

It is an amenable number.

26689382033 is a deficient number, since it is larger than the sum of its proper divisors (2356058047).

26689382033 is a wasteful number, since it uses less digits than its factorization.

26689382033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289348.

The product of its (nonzero) digits is 2239488, while the sum is 50.

The spelling of 26689382033 in words is "twenty-six billion, six hundred eighty-nine million, three hundred eighty-two thousand, thirty-three".