63443382061 has 4 divisors (see below), whose sum is σ = 63443885824. Its totient is φ = 63442878300.

The previous prime is 63443382059. The next prime is 63443382151. The reversal of 63443382061 is 16028334436.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 63443382061 - 2¹ = 63443382059 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 (63443382461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124726 + ... + 377416.

It is an arithmetic number, because the mean of its divisors is an integer number (15860971456).

Almost surely, 2^63443382061 is an apocalyptic number.

It is an amenable number.

63443382061 is a deficient number, since it is larger than the sum of its proper divisors (503763).

63443382061 is a wasteful number, since it uses less digits than its factorization.

63443382061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503762.

The product of its (nonzero) digits is 248832, while the sum is 40.

The spelling of 63443382061 in words is "sixty-three billion, four hundred forty-three million, three hundred eighty-two thousand, sixty-one".