1198445298999 has 16 divisors (see below), whose sum is σ = 1721048727552. Its totient is φ = 737417287008.

The previous prime is 1198445298991. The next prime is 1198445299021. The reversal of 1198445298999 is 9998925448911.

It is not a de Polignac number, because 1198445298999 - 2³ = 1198445298991 is a prime.

It is a super-2 number, since 2×1198445298999² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1198445298991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1489519 + ... + 2148384.

It is an arithmetic number, because the mean of its divisors is an integer number (107565545472).

Almost surely, 2^{1198445298999} is an apocalyptic number.

1198445298999 is a deficient number, since it is larger than the sum of its proper divisors (522603428553).

1198445298999 is a wasteful number, since it uses less digits than its factorization.

1198445298999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3646366.

The product of its digits is 604661760, while the sum is 78.

The spelling of 1198445298999 in words is "one trillion, one hundred ninety-eight billion, four hundred forty-five million, two hundred ninety-eight thousand, nine hundred ninety-nine".