68732228638194 has 128 divisors (see below), whose sum is σ = 159474358517760. Its totient is φ = 19542768379200.

The previous prime is 68732228638159. The next prime is 68732228638207. The reversal of 68732228638194 is 49183682223786.

68732228638194 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (69).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 41003799 + ... + 42647109.

It is an arithmetic number, because the mean of its divisors is an integer number (1245893425920).

Almost surely, 2^{68732228638194} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68732228638194, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79737179258880).

68732228638194 is an abundant number, since it is smaller than the sum of its proper divisors (90742129879566).

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

68732228638194 is a wasteful number, since it uses less digits than its factorization.

68732228638194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1643876.

The product of its digits is 334430208, while the sum is 69.

The spelling of 68732228638194 in words is "sixty-eight trillion, seven hundred thirty-two billion, two hundred twenty-eight million, six hundred thirty-eight thousand, one hundred ninety-four".