63163847987 has 2 divisors, whose sum is σ = 63163847988. Its totient is φ = 63163847986.

The previous prime is 63163847951. The next prime is 63163848017. The reversal of 63163847987 is 78974836136.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63163847987 is a prime.

It is not a weakly prime, because it can be changed into another prime (63163847287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31581923993 + 31581923994.

It is an arithmetic number, because the mean of its divisors is an integer number (31581923994).

Almost surely, 2^63163847987 is an apocalyptic number.

63163847987 is a deficient number, since it is larger than the sum of its proper divisors (1).

63163847987 is an equidigital number, since it uses as much as digits as its factorization.

63163847987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36578304, while the sum is 62.

The spelling of 63163847987 in words is "sixty-three billion, one hundred sixty-three million, eight hundred forty-seven thousand, nine hundred eighty-seven".