63311807963 has 2 divisors, whose sum is σ = 63311807964. Its totient is φ = 63311807962.

The previous prime is 63311807959. The next prime is 63311808067. The reversal of 63311807963 is 36970811336.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63311807963 - 2² = 63311807959 is a prime.

It is not a weakly prime, because it can be changed into another prime (63311807953) 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, 31655903981 + 31655903982.

It is an arithmetic number, because the mean of its divisors is an integer number (31655903982).

Almost surely, 2^63311807963 is an apocalyptic number.

63311807963 is a deficient number, since it is larger than the sum of its proper divisors (1).

63311807963 is an equidigital number, since it uses as much as digits as its factorization.

63311807963 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 489888, while the sum is 47.

The spelling of 63311807963 in words is "sixty-three billion, three hundred eleven million, eight hundred seven thousand, nine hundred sixty-three".