8198190000018 has 24 divisors (see below), whose sum is σ = 17762903791308. Its totient is φ = 2732705570592.

The previous prime is 8198189999999. The next prime is 8198190000029. The reversal of 8198190000018 is 8100000918918.

It can be written as a sum of positive squares in 2 ways, for example, as 6476958830169 + 1721231169849 = 2544987^2 + 1311957^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 93880 + ... + 4050332.

Almost surely, 2^{8198190000018} is an apocalyptic number.

8198190000018 is an abundant number, since it is smaller than the sum of its proper divisors (9564713791290).

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

8198190000018 is a wasteful number, since it uses less digits than its factorization.

8198190000018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4071578 (or 4071575 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 45.

The spelling of 8198190000018 in words is "eight trillion, one hundred ninety-eight billion, one hundred ninety million, eighteen", and thus it is an aban number.