268316845 has 12 divisors (see below), whose sum is σ = 333471060. Its totient is φ = 207248384.

The previous prime is 268316819. The next prime is 268316869. The reversal of 268316845 is 548613862.

It can be written as a sum of positive squares in 6 ways, for example, as 41242084 + 227074761 = 6422^2 + 15069^2 .

It is not a de Polignac number, because 268316845 - 2¹⁹ = 267792557 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27700 + ... + 36109.

It is an arithmetic number, because the mean of its divisors is an integer number (27789255).

Almost surely, 2^268316845 is an apocalyptic number.

It is an amenable number.

268316845 is a deficient number, since it is larger than the sum of its proper divisors (65154215).

268316845 is an equidigital number, since it uses as much as digits as its factorization.

268316845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63872 (or 63843 counting only the distinct ones).

The product of its digits is 276480, while the sum is 43.

The square root of 268316845 is about 16380.3798795999. The cubic root of 268316845 is about 644.9845518404.

It can be divided in two parts, 26831 and 6845, that multiplied together give a triangular number (183658195 = T₁₉₁₆₅).

The spelling of 268316845 in words is "two hundred sixty-eight million, three hundred sixteen thousand, eight hundred forty-five".