268666686666862 has 64 divisors (see below), whose sum is σ = 444595286520000. Its totient is φ = 121756124160000.

The previous prime is 268666686666811. The next prime is 268666686666893.

268666686666862 is nontrivially palindromic in base 10.

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 31 ways as a sum of consecutive naturals, for example, 11193966862 + ... + 11193990862.

It is an arithmetic number, because the mean of its divisors is an integer number (6946801351875).

Almost surely, 2^{268666686666862} is an apocalyptic number.

268666686666862 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

268666686666862 is a deficient number, since it is larger than the sum of its proper divisors (175928599853138).

268666686666862 is a wasteful number, since it uses less digits than its factorization.

268666686666862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36434 (or 36412 counting only the distinct ones).

The product of its digits is 123834728448, while the sum is 88.

The spelling of 268666686666862 in words is "two hundred sixty-eight trillion, six hundred sixty-six billion, six hundred eighty-six million, six hundred sixty-six thousand, eight hundred sixty-two".