63948484909 has 2 divisors, whose sum is σ = 63948484910. Its totient is φ = 63948484908.

The previous prime is 63948484871. The next prime is 63948484969. The reversal of 63948484909 is 90948484936.

It is a happy number.

63948484909 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63846171684 + 102313225 = 252678^2 + 10115^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63948484909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63948484969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31974242454 + 31974242455.

It is an arithmetic number, because the mean of its divisors is an integer number (31974242455).

Almost surely, 2^63948484909 is an apocalyptic number.

It is an amenable number.

63948484909 is a deficient number, since it is larger than the sum of its proper divisors (1).

63948484909 is an equidigital number, since it uses as much as digits as its factorization.

63948484909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 53747712, while the sum is 64.

The spelling of 63948484909 in words is "sixty-three billion, nine hundred forty-eight million, four hundred eighty-four thousand, nine hundred nine".