63816028043987 has 2 divisors, whose sum is σ = 63816028043988. Its totient is φ = 63816028043986.

The previous prime is 63816028043953. The next prime is 63816028044089. The reversal of 63816028043987 is 78934082061836.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63816028043987 - 2⁸ = 63816028043731 is a prime.

It is not a weakly prime, because it can be changed into another prime (63816028046987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31908014021993 + 31908014021994.

It is an arithmetic number, because the mean of its divisors is an integer number (31908014021994).

Almost surely, 2^{63816028043987} is an apocalyptic number.

63816028043987 is a deficient number, since it is larger than the sum of its proper divisors (1).

63816028043987 is an equidigital number, since it uses as much as digits as its factorization.

63816028043987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 83607552, while the sum is 65.

The spelling of 63816028043987 in words is "sixty-three trillion, eight hundred sixteen billion, twenty-eight million, forty-three thousand, nine hundred eighty-seven".