68445376634808 has 192 divisors, whose sum is σ = 193007315592000. Its totient is φ = 21893761714176.

The previous prime is 68445376634807. The next prime is 68445376634813. The reversal of 68445376634808 is 80843667354486.

It is a happy number.

68445376634808 is a `hidden beast` number, since 6 + 8 + 4 + 4 + 537 + 6 + 6 + 3 + 4 + 80 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68445376634807) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 93763533 + ... + 94490691.

It is an arithmetic number, because the mean of its divisors is an integer number (1005246435375).

Almost surely, 2^{68445376634808} 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 68445376634808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96503657796000).

68445376634808 is an abundant number, since it is smaller than the sum of its proper divisors (124561938957192).

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

68445376634808 is a wasteful number, since it uses less digits than its factorization.

68445376634808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 727694 (or 727687 counting only the distinct ones).

The product of its (nonzero) digits is 2229534720, while the sum is 72.

The spelling of 68445376634808 in words is "sixty-eight trillion, four hundred forty-five billion, three hundred seventy-six million, six hundred thirty-four thousand, eight hundred eight".