268209876304 has 20 divisors (see below), whose sum is σ = 520467352020. Its totient is φ = 133895720960.

The previous prime is 268209876281. The next prime is 268209876323. The reversal of 268209876304 is 403678902862.

It can be written as a sum of positive squares in 2 ways, for example, as 140289200704 + 127920675600 = 374552^2 + 357660^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13065499 + ... + 13086010.

It is an arithmetic number, because the mean of its divisors is an integer number (26023367601).

Almost surely, 2^268209876304 is an apocalyptic number.

It is an amenable number.

268209876304 is a deficient number, since it is larger than the sum of its proper divisors (252257475716).

268209876304 is a wasteful number, since it uses less digits than its factorization.

268209876304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26152158 (or 26152152 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 55.

The spelling of 268209876304 in words is "two hundred sixty-eight billion, two hundred nine million, eight hundred seventy-six thousand, three hundred four".