63264281317 has 4 divisors (see below), whose sum is σ = 64974126796. Its totient is φ = 61554435840.

The previous prime is 63264281303. The next prime is 63264281329. The reversal of 63264281317 is 71318246236.

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

It can be written as a sum of positive squares in 2 ways, for example, as 24536402881 + 38727878436 = 156641^2 + 196794^2 .

It is a cyclic number.

It is not a de Polignac number, because 63264281317 - 2⁷ = 63264281189 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 (63264281417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 854922684 + ... + 854922757.

It is an arithmetic number, because the mean of its divisors is an integer number (16243531699).

Almost surely, 2^63264281317 is an apocalyptic number.

It is an amenable number.

63264281317 is a deficient number, since it is larger than the sum of its proper divisors (1709845479).

63264281317 is a wasteful number, since it uses less digits than its factorization.

63264281317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1709845478.

The product of its digits is 290304, while the sum is 43.

The spelling of 63264281317 in words is "sixty-three billion, two hundred sixty-four million, two hundred eighty-one thousand, three hundred seventeen".