67812906812 has 12 divisors (see below), whose sum is σ = 135625813680. Its totient is φ = 29062674336.

The previous prime is 67812906809. The next prime is 67812906829. The reversal of 67812906812 is 21860921876.

67812906812 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1210944737 + ... + 1210944792.

It is an arithmetic number, because the mean of its divisors is an integer number (11302151140).

Almost surely, 2^67812906812 is an apocalyptic number.

It is an amenable number.

67812906812 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

67812906812 is a wasteful number, since it uses less digits than its factorization.

67812906812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2421889540 (or 2421889538 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 50.

The spelling of 67812906812 in words is "sixty-seven billion, eight hundred twelve million, nine hundred six thousand, eight hundred twelve".