9899279611219 has 2 divisors, whose sum is σ = 9899279611220. Its totient is φ = 9899279611218.

The previous prime is 9899279611183. The next prime is 9899279611261. The reversal of 9899279611219 is 9121169729989.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9899279611219 - 2¹¹ = 9899279609171 is a prime.

It is a super-2 number, since 2×9899279611219² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (9899279611519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4949639805609 + 4949639805610.

It is an arithmetic number, because the mean of its divisors is an integer number (4949639805610).

Almost surely, 2^{9899279611219} is an apocalyptic number.

9899279611219 is a deficient number, since it is larger than the sum of its proper divisors (1).

9899279611219 is an equidigital number, since it uses as much as digits as its factorization.

9899279611219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 79361856, while the sum is 73.

The spelling of 9899279611219 in words is "nine trillion, eight hundred ninety-nine billion, two hundred seventy-nine million, six hundred eleven thousand, two hundred nineteen".