67940618788 has 12 divisors (see below), whose sum is σ = 135881237632. Its totient is φ = 29117408040.

The previous prime is 67940618719. The next prime is 67940618791. The reversal of 67940618788 is 88781604976.

67940618788 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1213225308 + ... + 1213225363.

Almost surely, 2^67940618788 is an apocalyptic number.

It is an amenable number.

67940618788 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.

67940618788 is a wasteful number, since it uses less digits than its factorization.

67940618788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2426450682 (or 2426450680 counting only the distinct ones).

The product of its (nonzero) digits is 32514048, while the sum is 64.

The spelling of 67940618788 in words is "sixty-seven billion, nine hundred forty million, six hundred eighteen thousand, seven hundred eighty-eight".