65317643263 has 4 divisors (see below), whose sum is σ = 65318558368. Its totient is φ = 65316728160.

The previous prime is 65317643221. The next prime is 65317643267. The reversal of 65317643263 is 36234671356.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 65317643263 - 2⁹ = 65317642751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65317643267) 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, 340506 + ... + 496567.

It is an arithmetic number, because the mean of its divisors is an integer number (16329639592).

Almost surely, 2^65317643263 is an apocalyptic number.

65317643263 is a deficient number, since it is larger than the sum of its proper divisors (915105).

65317643263 is an equidigital number, since it uses as much as digits as its factorization.

65317643263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 915104.

The product of its digits is 1632960, while the sum is 46.

The spelling of 65317643263 in words is "sixty-five billion, three hundred seventeen million, six hundred forty-three thousand, two hundred sixty-three".