63368616869 has 2 divisors, whose sum is σ = 63368616870. Its totient is φ = 63368616868.

The previous prime is 63368616761. The next prime is 63368616881. The reversal of 63368616869 is 96861686336.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56829792100 + 6538824769 = 238390^2 + 80863^2 .

It is a cyclic number.

It is not a de Polignac number, because 63368616869 - 2²⁰ = 63367568293 is a prime.

It is a super-2 number, since 2×63368616869² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63368618869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31684308434 + 31684308435.

It is an arithmetic number, because the mean of its divisors is an integer number (31684308435).

Almost surely, 2^63368616869 is an apocalyptic number.

It is an amenable number.

63368616869 is a deficient number, since it is larger than the sum of its proper divisors (1).

63368616869 is an equidigital number, since it uses as much as digits as its factorization.

63368616869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40310784, while the sum is 62.

The spelling of 63368616869 in words is "sixty-three billion, three hundred sixty-eight million, six hundred sixteen thousand, eight hundred sixty-nine".