8194936249999 has 2 divisors, whose sum is σ = 8194936250000. Its totient is φ = 8194936249998.

The previous prime is 8194936249979. The next prime is 8194936250041. The reversal of 8194936249999 is 9999426394918.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8194936249999 - 2¹¹ = 8194936247951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8194936249979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4097468124999 + 4097468125000.

It is an arithmetic number, because the mean of its divisors is an integer number (4097468125000).

Almost surely, 2^{8194936249999} is an apocalyptic number.

8194936249999 is a deficient number, since it is larger than the sum of its proper divisors (1).

8194936249999 is an equidigital number, since it uses as much as digits as its factorization.

8194936249999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2448880128, while the sum is 82.

The spelling of 8194936249999 in words is "eight trillion, one hundred ninety-four billion, nine hundred thirty-six million, two hundred forty-nine thousand, nine hundred ninety-nine".