268534851683 has 4 divisors (see below), whose sum is σ = 306896973360. Its totient is φ = 230172730008.

The previous prime is 268534851679. The next prime is 268534851691. The reversal of 268534851683 is 386158435862.

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

It is a cyclic number.

It is not a de Polignac number, because 268534851683 - 2² = 268534851679 is a prime.

It is a super-2 number, since 2×268534851683² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (268534851643) 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, 19181060828 + ... + 19181060841.

It is an arithmetic number, because the mean of its divisors is an integer number (76724243340).

Almost surely, 2^268534851683 is an apocalyptic number.

268534851683 is a deficient number, since it is larger than the sum of its proper divisors (38362121677).

268534851683 is an equidigital number, since it uses as much as digits as its factorization.

268534851683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38362121676.

The product of its digits is 33177600, while the sum is 59.

The spelling of 268534851683 in words is "two hundred sixty-eight billion, five hundred thirty-four million, eight hundred fifty-one thousand, six hundred eighty-three".