268952636845 has 32 divisors (see below), whose sum is σ = 336856101120. Its totient is φ = 205963637760.

The previous prime is 268952636833. The next prime is 268952636867. The reversal of 268952636845 is 548636259862.

It is not a de Polignac number, because 268952636845 - 2¹⁹ = 268952112557 is a prime.

It is a Smith number, since the sum of its digits (64) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3664216 + ... + 3736894.

It is an arithmetic number, because the mean of its divisors is an integer number (10526753160).

Almost surely, 2^268952636845 is an apocalyptic number.

It is an amenable number.

268952636845 is a deficient number, since it is larger than the sum of its proper divisors (67903464275).

268952636845 is a wasteful number, since it uses less digits than its factorization.

268952636845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73045.

The product of its digits is 149299200, while the sum is 64.

The spelling of 268952636845 in words is "two hundred sixty-eight billion, nine hundred fifty-two million, six hundred thirty-six thousand, eight hundred forty-five".