263775275264 has 36 divisors (see below), whose sum is σ = 528881369856. Its totient is φ = 131296184832.

The previous prime is 263775275233. The next prime is 263775275279. The reversal of 263775275264 is 462572577362.

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 3 ways as a sum of consecutive naturals, for example, 2253164 + ... + 2367339.

Almost surely, 2^263775275264 is an apocalyptic number.

It is an amenable number.

263775275264 is an abundant number, since it is smaller than the sum of its proper divisors (265106094592).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

263775275264 is an equidigital number, since it uses as much as digits as its factorization.

263775275264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4620742 (or 4620728 counting only the distinct ones).

The product of its digits is 29635200, while the sum is 56.

The spelling of 263775275264 in words is "two hundred sixty-three billion, seven hundred seventy-five million, two hundred seventy-five thousand, two hundred sixty-four".