63783301321 has 4 divisors (see below), whose sum is σ = 67140317200. Its totient is φ = 60426285444.

The previous prime is 63783301297. The next prime is 63783301331. The reversal of 63783301321 is 12310338736.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 63783301321 - 2⁵ = 63783301289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63783301331) 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, 1678507911 + ... + 1678507948.

It is an arithmetic number, because the mean of its divisors is an integer number (16785079300).

Almost surely, 2^63783301321 is an apocalyptic number.

It is an amenable number.

63783301321 is a deficient number, since it is larger than the sum of its proper divisors (3357015879).

63783301321 is a wasteful number, since it uses less digits than its factorization.

63783301321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3357015878.

The product of its (nonzero) digits is 54432, while the sum is 37.

The spelling of 63783301321 in words is "sixty-three billion, seven hundred eighty-three million, three hundred one thousand, three hundred twenty-one".