68164172474328 has 192 divisors, whose sum is σ = 214770592108800. Its totient is φ = 19126624884480.

The previous prime is 68164172474323. The next prime is 68164172474353. The reversal of 68164172474328 is 82347427146186.

It is a happy number.

68164172474328 is a `hidden beast` number, since 6 + 8 + 1 + 64 + 1 + 7 + 247 + 4 + 328 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68164172474323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 29237875 + ... + 31483037.

It is an arithmetic number, because the mean of its divisors is an integer number (1118596833900).

Almost surely, 2^{68164172474328} 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 68164172474328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107385296054400).

68164172474328 is an abundant number, since it is smaller than the sum of its proper divisors (146606419634472).

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

68164172474328 is a wasteful number, since it uses less digits than its factorization.

68164172474328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2246262 (or 2246255 counting only the distinct ones).

The product of its digits is 86704128, while the sum is 63.

The spelling of 68164172474328 in words is "sixty-eight trillion, one hundred sixty-four billion, one hundred seventy-two million, four hundred seventy-four thousand, three hundred twenty-eight".