68473187328 has 176 divisors, whose sum is σ = 224623696640. Its totient is φ = 18058788864.

The previous prime is 68473187309. The next prime is 68473187329. The reversal of 68473187328 is 82378137486.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (68473187329) 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 15 ways as a sum of consecutive naturals, for example, 157083 + ... + 402021.

Almost surely, 2^68473187328 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68473187328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112311848320).

68473187328 is an abundant number, since it is smaller than the sum of its proper divisors (156150509312).

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

68473187328 is a wasteful number, since it uses less digits than its factorization.

68473187328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244982 (or 244964 counting only the distinct ones).

The product of its digits is 10838016, while the sum is 57.

The spelling of 68473187328 in words is "sixty-eight billion, four hundred seventy-three million, one hundred eighty-seven thousand, three hundred twenty-eight".