998042240899 has 16 divisors (see below), whose sum is σ = 1100070972000. Its totient is φ = 897897692160.

The previous prime is 998042240843. The next prime is 998042240911.

998042240899 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 998042240899 - 2¹⁹ = 998041716611 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 998042240899.

It is not an unprimeable number, because it can be changed into a prime (998042246899) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27139977 + ... + 27176725.

It is an arithmetic number, because the mean of its divisors is an integer number (68754435750).

Almost surely, 2^998042240899 is an apocalyptic number.

998042240899 is a deficient number, since it is larger than the sum of its proper divisors (102028731101).

998042240899 is a wasteful number, since it uses less digits than its factorization.

998042240899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62310.

The product of its (nonzero) digits is 26873856, while the sum is 64.

The spelling of 998042240899 in words is "nine hundred ninety-eight billion, forty-two million, two hundred forty thousand, eight hundred ninety-nine".