268162756625 has 8 divisors (see below), whose sum is σ = 334667120424. Its totient is φ = 214530205200.

The previous prime is 268162756607. The next prime is 268162756679. The reversal of 268162756625 is 526657261862.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5493181456 + 262669575169 = 74116^2 + 512513^2 .

It is a de Polignac number, because none of the positive numbers 2^k-268162756625 is a prime.

It is a super-2 number, since 2×268162756625² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 1072650902 + ... + 1072651151.

It is an arithmetic number, because the mean of its divisors is an integer number (41833390053).

Almost surely, 2^268162756625 is an apocalyptic number.

268162756625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

268162756625 is a deficient number, since it is larger than the sum of its proper divisors (66504363799).

268162756625 is an equidigital number, since it uses as much as digits as its factorization.

268162756625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2145302068 (or 2145302058 counting only the distinct ones).

The product of its digits is 14515200, while the sum is 56.

The spelling of 268162756625 in words is "two hundred sixty-eight billion, one hundred sixty-two million, seven hundred fifty-six thousand, six hundred twenty-five".