9990099900919 has 2 divisors, whose sum is σ = 9990099900920. Its totient is φ = 9990099900918.

The previous prime is 9990099900881. The next prime is 9990099900923. The reversal of 9990099900919 is 9190099900999.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9990099900919 - 2⁷ = 9990099900791 is a prime.

It is a super-2 number, since 2×9990099900919² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9990099900929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4995049950459 + 4995049950460.

It is an arithmetic number, because the mean of its divisors is an integer number (4995049950460).

Almost surely, 2^{9990099900919} is an apocalyptic number.

9990099900919 is a deficient number, since it is larger than the sum of its proper divisors (1).

9990099900919 is an equidigital number, since it uses as much as digits as its factorization.

9990099900919 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43046721, while the sum is 73.

The spelling of 9990099900919 in words is "nine trillion, nine hundred ninety billion, ninety-nine million, nine hundred thousand, nine hundred nineteen".