268653586804 has 6 divisors (see below), whose sum is σ = 470143776914. Its totient is φ = 134326793400.

The previous prime is 268653586781. The next prime is 268653586829. The reversal of 268653586804 is 408685356862.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 241297088400 + 27356498404 = 491220^2 + 165398^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33581698347 + ... + 33581698354.

Almost surely, 2^268653586804 is an apocalyptic number.

It is an amenable number.

268653586804 is a deficient number, since it is larger than the sum of its proper divisors (201490190110).

268653586804 is a wasteful number, since it uses less digits than its factorization.

268653586804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67163396705 (or 67163396703 counting only the distinct ones).

The product of its (nonzero) digits is 66355200, while the sum is 61.

The spelling of 268653586804 in words is "two hundred sixty-eight billion, six hundred fifty-three million, five hundred eighty-six thousand, eight hundred four".