63317857868 has 24 divisors (see below), whose sum is σ = 112388276112. Its totient is φ = 31207417344.

The previous prime is 63317857859. The next prime is 63317857871. The reversal of 63317857868 is 86875871336.

It is a super-2 number, since 2×63317857868² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 63317857868.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 457871 + ... + 579897.

It is an arithmetic number, because the mean of its divisors is an integer number (4682844838).

Almost surely, 2^63317857868 is an apocalyptic number.

It is an amenable number.

63317857868 is a deficient number, since it is larger than the sum of its proper divisors (49070418244).

63317857868 is a wasteful number, since it uses less digits than its factorization.

63317857868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123881 (or 123879 counting only the distinct ones).

The product of its digits is 40642560, while the sum is 62.

The spelling of 63317857868 in words is "sixty-three billion, three hundred seventeen million, eight hundred fifty-seven thousand, eight hundred sixty-eight".