63400481171 has 2 divisors, whose sum is σ = 63400481172. Its totient is φ = 63400481170.

The previous prime is 63400481167. The next prime is 63400481201. The reversal of 63400481171 is 17118400436.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63400481171 - 2² = 63400481167 is a prime.

It is not a weakly prime, because it can be changed into another prime (63400481101) 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, 31700240585 + 31700240586.

It is an arithmetic number, because the mean of its divisors is an integer number (31700240586).

Almost surely, 2^63400481171 is an apocalyptic number.

63400481171 is a deficient number, since it is larger than the sum of its proper divisors (1).

63400481171 is an equidigital number, since it uses as much as digits as its factorization.

63400481171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 35.

The spelling of 63400481171 in words is "sixty-three billion, four hundred million, four hundred eighty-one thousand, one hundred seventy-one".