63661352039 has 2 divisors, whose sum is σ = 63661352040. Its totient is φ = 63661352038.

The previous prime is 63661351967. The next prime is 63661352077. The reversal of 63661352039 is 93025316636.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63661352039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (60661352039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31830676019 + 31830676020.

It is an arithmetic number, because the mean of its divisors is an integer number (31830676020).

Almost surely, 2^63661352039 is an apocalyptic number.

63661352039 is a deficient number, since it is larger than the sum of its proper divisors (1).

63661352039 is an equidigital number, since it uses as much as digits as its factorization.

63661352039 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 44.

The spelling of 63661352039 in words is "sixty-three billion, six hundred sixty-one million, three hundred fifty-two thousand, thirty-nine".