9936818761819 has 2 divisors, whose sum is σ = 9936818761820. Its totient is φ = 9936818761818.

The previous prime is 9936818761813. The next prime is 9936818761823. The reversal of 9936818761819 is 9181678186399.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9936818761819 - 2²⁷ = 9936684544091 is a prime.

It is a super-2 number, since 2×9936818761819² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (9936818761813) by changing a digit.

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 as a sum of consecutive naturals, namely, 4968409380909 + 4968409380910.

It is an arithmetic number, because the mean of its divisors is an integer number (4968409380910).

Almost surely, 2^{9936818761819} is an apocalyptic number.

9936818761819 is a deficient number, since it is larger than the sum of its proper divisors (1).

9936818761819 is an equidigital number, since it uses as much as digits as its factorization.

9936818761819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 282175488, while the sum is 76.

The spelling of 9936818761819 in words is "nine trillion, nine hundred thirty-six billion, eight hundred eighteen million, seven hundred sixty-one thousand, eight hundred nineteen".