68758812 has 72 divisors (see below), whose sum is σ = 185146416. Its totient is φ = 21441024.

The previous prime is 68758769. The next prime is 68758813. The reversal of 68758812 is 21885786.

68758812 is a `hidden beast` number, since 68 + 7 + 588 + 1 + 2 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68758813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 172998 + ... + 173394.

It is an arithmetic number, because the mean of its divisors is an integer number (2571478).

Almost surely, 2^68758812 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 68758812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92573208).

68758812 is an abundant number, since it is smaller than the sum of its proper divisors (116387604).

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

68758812 is a wasteful number, since it uses less digits than its factorization.

68758812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707 (or 702 counting only the distinct ones).

The product of its digits is 215040, while the sum is 45.

The square root of 68758812 is about 8292.0933424558. The cubic root of 68758812 is about 409.6781372411.

The spelling of 68758812 in words is "sixty-eight million, seven hundred fifty-eight thousand, eight hundred twelve".