68736628704 has 48 divisors (see below), whose sum is σ = 186655507920. Its totient is φ = 22122132480.

The previous prime is 68736628691. The next prime is 68736628721. The reversal of 68736628704 is 40782663786.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

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, 12342157 + ... + 12347724.

It is an arithmetic number, because the mean of its divisors is an integer number (3888656415).

Almost surely, 2^68736628704 is an apocalyptic number.

It is an amenable number.

68736628704 is an abundant number, since it is smaller than the sum of its proper divisors (117918879216).

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

68736628704 is a wasteful number, since it uses less digits than its factorization.

68736628704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24689923 (or 24689915 counting only the distinct ones).

The product of its (nonzero) digits is 16257024, while the sum is 57.

The spelling of 68736628704 in words is "sixty-eight billion, seven hundred thirty-six million, six hundred twenty-eight thousand, seven hundred four".