63955431761827 has 2 divisors, whose sum is σ = 63955431761828. Its totient is φ = 63955431761826.

The previous prime is 63955431761789. The next prime is 63955431761839. The reversal of 63955431761827 is 72816713455936.

63955431761827 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63955431761827 - 2⁴³ = 55159338739619 is a prime.

It is not a weakly prime, because it can be changed into another prime (63955431761327) 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, 31977715880913 + 31977715880914.

It is an arithmetic number, because the mean of its divisors is an integer number (31977715880914).

Almost surely, 2^{63955431761827} is an apocalyptic number.

63955431761827 is a deficient number, since it is larger than the sum of its proper divisors (1).

63955431761827 is an equidigital number, since it uses as much as digits as its factorization.

63955431761827 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 228614400, while the sum is 67.

The spelling of 63955431761827 in words is "sixty-three trillion, nine hundred fifty-five billion, four hundred thirty-one million, seven hundred sixty-one thousand, eight hundred twenty-seven".