63543063931 has 2 divisors, whose sum is σ = 63543063932. Its totient is φ = 63543063930.

The previous prime is 63543063929. The next prime is 63543063937. The reversal of 63543063931 is 13936034536.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63543063931 - 2¹ = 63543063929 is a prime.

It is a super-2 number, since 2×63543063931² (a number of 22 digits) contains 22 as substring.

Together with 63543063929, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (63543063937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31771531965 + 31771531966.

It is an arithmetic number, because the mean of its divisors is an integer number (31771531966).

Almost surely, 2^63543063931 is an apocalyptic number.

63543063931 is a deficient number, since it is larger than the sum of its proper divisors (1).

63543063931 is an equidigital number, since it uses as much as digits as its factorization.

63543063931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 524880, while the sum is 43.

The spelling of 63543063931 in words is "sixty-three billion, five hundred forty-three million, sixty-three thousand, nine hundred thirty-one".