266982396858 has 36 divisors (see below), whose sum is σ = 614490638190. Its totient is φ = 83759181696.

The previous prime is 266982396853. The next prime is 266982396859. The reversal of 266982396858 is 858693289662.

266982396858 is a `hidden beast` number, since 26 + 69 + 82 + 396 + 85 + 8 = 666.

266982396858 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 263356791489 + 3625605369 = 513183^2 + 60213^2 .

It is not an unprimeable number, because it can be changed into a prime (266982396853) 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 17 ways as a sum of consecutive naturals, for example, 25656313 + ... + 25666716.

Almost surely, 2^266982396858 is an apocalyptic number.

266982396858 is an abundant number, since it is smaller than the sum of its proper divisors (347508241332).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

266982396858 is a wasteful number, since it uses less digits than its factorization.

266982396858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51323071 (or 51323051 counting only the distinct ones).

The product of its digits is 537477120, while the sum is 72.

The spelling of 266982396858 in words is "two hundred sixty-six billion, nine hundred eighty-two million, three hundred ninety-six thousand, eight hundred fifty-eight".