68845587744 has 48 divisors (see below), whose sum is σ = 183007278720. Its totient is φ = 22658039040.

The previous prime is 68845587737. The next prime is 68845587749. The reversal of 68845587744 is 44778554886.

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

It is not an unprimeable number, because it can be changed into a prime (68845587749) 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 7 ways as a sum of consecutive naturals, for example, 4531287 + ... + 4546454.

It is an arithmetic number, because the mean of its divisors is an integer number (3812651640).

Almost surely, 2^68845587744 is an apocalyptic number.

It is an amenable number.

68845587744 is an abundant number, since it is smaller than the sum of its proper divisors (114161690976).

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

68845587744 is a wasteful number, since it uses less digits than its factorization.

68845587744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9077833 (or 9077825 counting only the distinct ones).

The product of its digits is 240844800, while the sum is 66.

The spelling of 68845587744 in words is "sixty-eight billion, eight hundred forty-five million, five hundred eighty-seven thousand, seven hundred forty-four".