68855899368 has 64 divisors (see below), whose sum is σ = 172762934400. Its totient is φ = 22869031680.

The previous prime is 68855899313. The next prime is 68855899369. The reversal of 68855899368 is 86399855886.

It is a super-2 number, since 2×68855899368² (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 68855899368.

It is not an unprimeable number, because it can be changed into a prime (68855899369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7975278 + ... + 7983906.

It is an arithmetic number, because the mean of its divisors is an integer number (2699420850).

Almost surely, 2^68855899368 is an apocalyptic number.

It is an amenable number.

68855899368 is an abundant number, since it is smaller than the sum of its proper divisors (103907035032).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68855899368 is a wasteful number, since it uses less digits than its factorization.

68855899368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9802 (or 9798 counting only the distinct ones).

The product of its digits is 895795200, while the sum is 75.

The spelling of 68855899368 in words is "sixty-eight billion, eight hundred fifty-five million, eight hundred ninety-nine thousand, three hundred sixty-eight".