268684242874 has 4 divisors (see below), whose sum is σ = 403026364314. Its totient is φ = 134342121436.

The previous prime is 268684242847. The next prime is 268684242877. The reversal of 268684242874 is 478242486862.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 222164223649 + 46520019225 = 471343^2 + 215685^2 .

It is a super-4 number, since 4×268684242874⁴ (a number of 47 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (268684242877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67171060717 + ... + 67171060720.

Almost surely, 2^268684242874 is an apocalyptic number.

268684242874 is a deficient number, since it is larger than the sum of its proper divisors (134342121440).

268684242874 is a wasteful number, since it uses less digits than its factorization.

268684242874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134342121439.

The product of its digits is 66060288, while the sum is 61.

The spelling of 268684242874 in words is "two hundred sixty-eight billion, six hundred eighty-four million, two hundred forty-two thousand, eight hundred seventy-four".