63883516081 has 32 divisors (see below), whose sum is σ = 81120476160. Its totient is φ = 48861009600.

The previous prime is 63883516063. The next prime is 63883516121. The reversal of 63883516081 is 18061538836.

It is a cyclic number.

It is not a de Polignac number, because 63883516081 - 2¹¹ = 63883514033 is a prime.

It is a super-2 number, since 2×63883516081² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63883510081) 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 31 ways as a sum of consecutive naturals, for example, 3065226 + ... + 3085996.

It is an arithmetic number, because the mean of its divisors is an integer number (2535014880).

Almost surely, 2^63883516081 is an apocalyptic number.

It is an amenable number.

63883516081 is a deficient number, since it is larger than the sum of its proper divisors (17236960079).

63883516081 is a wasteful number, since it uses less digits than its factorization.

63883516081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21525.

The product of its (nonzero) digits is 829440, while the sum is 49.

The spelling of 63883516081 in words is "sixty-three billion, eight hundred eighty-three million, five hundred sixteen thousand, eighty-one".