68712812 has 24 divisors (see below), whose sum is σ = 138134304. Its totient is φ = 29296512.

The previous prime is 68712773. The next prime is 68712817. The reversal of 68712812 is 21821786.

It is not an unprimeable number, because it can be changed into a prime (68712817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 713 + ... + 11744.

It is an arithmetic number, because the mean of its divisors is an integer number (5755596).

Almost surely, 2^68712812 is an apocalyptic number.

It is an amenable number.

68712812 is an abundant number, since it is smaller than the sum of its proper divisors (69421492).

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

68712812 is a wasteful number, since it uses less digits than its factorization.

68712812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12665 (or 12663 counting only the distinct ones).

The product of its digits is 10752, while the sum is 35.

The square root of 68712812 is about 8289.3191517760. The cubic root of 68712812 is about 409.5867579312.

The spelling of 68712812 in words is "sixty-eight million, seven hundred twelve thousand, eight hundred twelve".