268684289474 has 8 divisors (see below), whose sum is σ = 405072254268. Its totient is φ = 133660204720.

The previous prime is 268684289443. The next prime is 268684289477. The reversal of 268684289474 is 474982486862.

It can be written as a sum of positive squares in 2 ways, for example, as 251577480625 + 17106808849 = 501575^2 + 130793^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (268684289477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 340969517 + ... + 340970304.

Almost surely, 2^268684289474 is an apocalyptic number.

268684289474 is a deficient number, since it is larger than the sum of its proper divisors (136387964794).

268684289474 is a wasteful number, since it uses less digits than its factorization.

268684289474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681940020.

The product of its digits is 297271296, while the sum is 68.

The spelling of 268684289474 in words is "two hundred sixty-eight billion, six hundred eighty-four million, two hundred eighty-nine thousand, four hundred seventy-four".