263343343217344 has 28 divisors (see below), whose sum is σ = 562769788752304. Its totient is φ = 121543081484544.

The previous prime is 263343343217321. The next prime is 263343343217347. The reversal of 263343343217344 is 443712343343362.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a junction number, because it is equal to n+sod(n) for n = 263343343217291 and 263343343217300.

It is not an unprimeable number, because it can be changed into a prime (263343343217347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158259219852 + ... + 158259221515.

It is an arithmetic number, because the mean of its divisors is an integer number (20098921026868).

Almost surely, 2^{263343343217344} is an apocalyptic number.

It is an amenable number.

263343343217344 is an abundant number, since it is smaller than the sum of its proper divisors (299426445534960).

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

263343343217344 is a wasteful number, since it uses less digits than its factorization.

263343343217344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316518441392 (or 316518441382 counting only the distinct ones).

The product of its digits is 31352832, while the sum is 52.

The spelling of 263343343217344 in words is "two hundred sixty-three trillion, three hundred forty-three billion, three hundred forty-three million, two hundred seventeen thousand, three hundred forty-four".