8181593518396 has 12 divisors (see below), whose sum is σ = 14317920202320. Its totient is φ = 4090759174880.

The previous prime is 8181593518393. The next prime is 8181593518409. The reversal of 8181593518396 is 6938153951818.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8181593518393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8903416 + ... + 9779263.

It is an arithmetic number, because the mean of its divisors is an integer number (1193160016860).

Almost surely, 2^{8181593518396} is an apocalyptic number.

It is an amenable number.

8181593518396 is a deficient number, since it is larger than the sum of its proper divisors (6136326683924).

8181593518396 is a wasteful number, since it uses less digits than its factorization.

8181593518396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18792164 (or 18792162 counting only the distinct ones).

The product of its digits is 55987200, while the sum is 67.

The spelling of 8181593518396 in words is "eight trillion, one hundred eighty-one billion, five hundred ninety-three million, five hundred eighteen thousand, three hundred ninety-six".