65317703421263 has 8 divisors (see below), whose sum is σ = 68915002763520. Its totient is φ = 61736356626840.

The previous prime is 65317703421211. The next prime is 65317703421317. The reversal of 65317703421263 is 36212430771356.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65317703421263 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 (65317703429263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3988128545 + ... + 3988144922.

It is an arithmetic number, because the mean of its divisors is an integer number (8614375345440).

Almost surely, 2^{65317703421263} is an apocalyptic number.

65317703421263 is a deficient number, since it is larger than the sum of its proper divisors (3597299342257).

65317703421263 is a wasteful number, since it uses less digits than its factorization.

65317703421263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7976273917.

The product of its (nonzero) digits is 3810240, while the sum is 50.

The spelling of 65317703421263 in words is "sixty-five trillion, three hundred seventeen billion, seven hundred three million, four hundred twenty-one thousand, two hundred sixty-three".