268785210125 has 8 divisors (see below), whose sum is σ = 335443942392. Its totient is φ = 215028168000.

The previous prime is 268785210101. The next prime is 268785210137. The reversal of 268785210125 is 521012587862.

It can be written as a sum of positive squares in 4 ways, for example, as 29783511241 + 239001698884 = 172579^2 + 488878^2 .

It is not a de Polignac number, because 268785210125 - 2²⁰ = 268784161549 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 268785210125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1075140716 + ... + 1075140965.

It is an arithmetic number, because the mean of its divisors is an integer number (41930492799).

Almost surely, 2^268785210125 is an apocalyptic number.

268785210125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

268785210125 is a deficient number, since it is larger than the sum of its proper divisors (66658732267).

268785210125 is an equidigital number, since it uses as much as digits as its factorization.

268785210125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2150281696 (or 2150281686 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 47.

Adding to 268785210125 its reverse (521012587862), we get a palindrome (789797797987).

The spelling of 268785210125 in words is "two hundred sixty-eight billion, seven hundred eighty-five million, two hundred ten thousand, one hundred twenty-five".