68436414752 has 24 divisors (see below), whose sum is σ = 142659733356. Its totient is φ = 32205371392.

The previous prime is 68436414751. The next prime is 68436414791. The reversal of 68436414752 is 25741463486.

It can be written as a sum of positive squares in 2 ways, for example, as 68181565456 + 254849296 = 261116^2 + 15964^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 68436414752.

It is not an unprimeable number, because it can be changed into a prime (68436414751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62900573 + ... + 62901660.

Almost surely, 2^68436414752 is an apocalyptic number.

It is an amenable number.

68436414752 is an abundant number, since it is smaller than the sum of its proper divisors (74223318604).

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

68436414752 is a wasteful number, since it uses less digits than its factorization.

68436414752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125802260 (or 125802252 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 50.

The spelling of 68436414752 in words is "sixty-eight billion, four hundred thirty-six million, four hundred fourteen thousand, seven hundred fifty-two".