3581943986812 has 12 divisors (see below), whose sum is σ = 6333024678400. Its totient is φ = 1772508364416.

The previous prime is 3581943986779. The next prime is 3581943986827. The reversal of 3581943986812 is 2186893491853.

It is a hoax number, since the sum of its digits (67) coincides with the sum of the digits of its distinct prime factors.

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, 4615906812 + ... + 4615907587.

Almost surely, 2^{3581943986812} is an apocalyptic number.

It is an amenable number.

3581943986812 is a deficient number, since it is larger than the sum of its proper divisors (2751080691588).

3581943986812 is a wasteful number, since it uses less digits than its factorization.

3581943986812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9231814500 (or 9231814498 counting only the distinct ones).

The product of its digits is 89579520, while the sum is 67.

The spelling of 3581943986812 in words is "three trillion, five hundred eighty-one billion, nine hundred forty-three million, nine hundred eighty-six thousand, eight hundred twelve".