263440712044993 has 32 divisors (see below), whose sum is σ = 321046263014400. Its totient is φ = 211155126924096.

The previous prime is 263440712044987. The next prime is 263440712045003. The reversal of 263440712044993 is 399440217044362.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 263440712044993 - 2¹⁷ = 263440711913921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (263440712044093) 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 31 ways as a sum of consecutive naturals, for example, 37986871 + ... + 44383372.

It is an arithmetic number, because the mean of its divisors is an integer number (10032695719200).

Almost surely, 2^{263440712044993} is an apocalyptic number.

It is an amenable number.

263440712044993 is a deficient number, since it is larger than the sum of its proper divisors (57605550969407).

263440712044993 is a wasteful number, since it uses less digits than its factorization.

263440712044993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82370581.

The product of its (nonzero) digits is 31352832, while the sum is 58.

The spelling of 263440712044993 in words is "two hundred sixty-three trillion, four hundred forty billion, seven hundred twelve million, forty-four thousand, nine hundred ninety-three".