63433921171 has 2 divisors, whose sum is σ = 63433921172. Its totient is φ = 63433921170.

The previous prime is 63433921163. The next prime is 63433921183. The reversal of 63433921171 is 17112933436.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63433921171 - 2³ = 63433921163 is a prime.

It is a super-2 number, since 2×63433921171² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (63433921471) 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 as a sum of consecutive naturals, namely, 31716960585 + 31716960586.

It is an arithmetic number, because the mean of its divisors is an integer number (31716960586).

Almost surely, 2^63433921171 is an apocalyptic number.

63433921171 is a deficient number, since it is larger than the sum of its proper divisors (1).

63433921171 is an equidigital number, since it uses as much as digits as its factorization.

63433921171 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81648, while the sum is 40.

The spelling of 63433921171 in words is "sixty-three billion, four hundred thirty-three million, nine hundred twenty-one thousand, one hundred seventy-one".