26228626864686 has 40 divisors (see below), whose sum is σ = 60022011376800. Its totient is φ = 8556856988832.

The previous prime is 26228626864669. The next prime is 26228626864723. The reversal of 26228626864686 is 68646862682262.

It is a happy number.

26228626864686 is a `hidden beast` number, since 2 + 6 + 2 + 2 + 86 + 2 + 6 + 86 + 468 + 6 = 666.

It is a hoax number, since the sum of its digits (72) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1722387111 + ... + 1722402338.

It is an arithmetic number, because the mean of its divisors is an integer number (1500550284420).

Almost surely, 2^{26228626864686} is an apocalyptic number.

26228626864686 is an abundant number, since it is smaller than the sum of its proper divisors (33793384512114).

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

26228626864686 is a wasteful number, since it uses less digits than its factorization.

26228626864686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3444789510 (or 3444789501 counting only the distinct ones).

The product of its digits is 1528823808, while the sum is 72.

The spelling of 26228626864686 in words is "twenty-six trillion, two hundred twenty-eight billion, six hundred twenty-six million, eight hundred sixty-four thousand, six hundred eighty-six".