68845617896 has 32 divisors (see below), whose sum is σ = 145676469600. Its totient is φ = 30214376640.

The previous prime is 68845617877. The next prime is 68845618003. The reversal of 68845617896 is 69871654886.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13486010 + ... + 13491113.

It is an arithmetic number, because the mean of its divisors is an integer number (4552389675).

Almost surely, 2^68845617896 is an apocalyptic number.

It is an amenable number.

68845617896 is an abundant number, since it is smaller than the sum of its proper divisors (76830851704).

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

68845617896 is a wasteful number, since it uses less digits than its factorization.

68845617896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26977169 (or 26977165 counting only the distinct ones).

The product of its digits is 139345920, while the sum is 68.

The spelling of 68845617896 in words is "sixty-eight billion, eight hundred forty-five million, six hundred seventeen thousand, eight hundred ninety-six".