74067940668 has 12 divisors (see below), whose sum is σ = 172825194920. Its totient is φ = 24689313552.

The previous prime is 74067940643. The next prime is 74067940729. The reversal of 74067940668 is 86604976047.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3086164183 + ... + 3086164206.

Almost surely, 2^74067940668 is an apocalyptic number.

It is an amenable number.

74067940668 is an abundant number, since it is smaller than the sum of its proper divisors (98757254252).

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

74067940668 is a wasteful number, since it uses less digits than its factorization.

74067940668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6172328396 (or 6172328394 counting only the distinct ones).

The product of its (nonzero) digits is 12192768, while the sum is 57.

The spelling of 74067940668 in words is "seventy-four billion, sixty-seven million, nine hundred forty thousand, six hundred sixty-eight".