268085785 has 12 divisors (see below), whose sum is σ = 353608164. Its totient is φ = 194971040.

The previous prime is 268085761. The next prime is 268085803. The reversal of 268085785 is 587580862.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 181279296 + 86806489 = 13464^2 + 9317^2 .

It is a de Polignac number, because none of the positive numbers 2^k-268085785 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 220954 + ... + 222163.

It is an arithmetic number, because the mean of its divisors is an integer number (29467347).

Almost surely, 2^268085785 is an apocalyptic number.

It is an amenable number.

268085785 is a deficient number, since it is larger than the sum of its proper divisors (85522379).

268085785 is a wasteful number, since it uses less digits than its factorization.

268085785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443144 (or 443133 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 49.

The square root of 268085785 is about 16373.3254105573. The cubic root of 268085785 is about 644.7993566968.

The spelling of 268085785 in words is "two hundred sixty-eight million, eighty-five thousand, seven hundred eighty-five".