63215958167987 has 2 divisors, whose sum is σ = 63215958167988. Its totient is φ = 63215958167986.

The previous prime is 63215958167977. The next prime is 63215958168017. The reversal of 63215958167987 is 78976185951236.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63215958167987 - 2⁴⁴ = 45623772123571 is a prime.

It is not a weakly prime, because it can be changed into another prime (63215958167977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31607979083993 + 31607979083994.

It is an arithmetic number, because the mean of its divisors is an integer number (31607979083994).

Almost surely, 2^{63215958167987} is an apocalyptic number.

63215958167987 is a deficient number, since it is larger than the sum of its proper divisors (1).

63215958167987 is an equidigital number, since it uses as much as digits as its factorization.

63215958167987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1371686400, while the sum is 77.

The spelling of 63215958167987 in words is "sixty-three trillion, two hundred fifteen billion, nine hundred fifty-eight million, one hundred sixty-seven thousand, nine hundred eighty-seven".