68423906304 has 880 divisors, whose sum is σ = 239681756160. Its totient is φ = 19269550080.

The previous prime is 68423906303. The next prime is 68423906321. The reversal of 68423906304 is 40360932486.

68423906304 is a `hidden beast` number, since 6 + 8 + 4 + 2 + 3 + 9 + 0 + 630 + 4 = 666.

68423906304 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 68423906304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68423906303) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 768807892 + ... + 768807980.

It is an arithmetic number, because the mean of its divisors is an integer number (272365632).

Almost surely, 2^68423906304 is an apocalyptic number.

68423906304 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68423906304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119840878080).

68423906304 is an abundant number, since it is smaller than the sum of its proper divisors (171257849856).

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

68423906304 is a wasteful number, since it uses less digits than its factorization.

68423906304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188 (or 161 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 45.

The spelling of 68423906304 in words is "sixty-eight billion, four hundred twenty-three million, nine hundred six thousand, three hundred four".