998192291899 has 8 divisors (see below), whose sum is σ = 1099718601840. Its totient is φ = 898462908000.

The previous prime is 998192291879. The next prime is 998192291903.

998192291899 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 998192291899 - 2⁵ = 998192291867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (998192291879) 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 in 7 ways as a sum of consecutive naturals, for example, 449230344 + ... + 449232565.

It is an arithmetic number, because the mean of its divisors is an integer number (137464825230).

Almost surely, 2^998192291899 is an apocalyptic number.

998192291899 is a deficient number, since it is larger than the sum of its proper divisors (101526309941).

998192291899 is a wasteful number, since it uses less digits than its factorization.

998192291899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 898463021.

The product of its digits is 136048896, while the sum is 76.

The spelling of 998192291899 in words is "nine hundred ninety-eight billion, one hundred ninety-two million, two hundred ninety-one thousand, eight hundred ninety-nine".