99244897919999 has 4 divisors (see below), whose sum is σ = 106879120836936. Its totient is φ = 91610675003064.

The previous prime is 99244897919941. The next prime is 99244897920011. The reversal of 99244897919999 is 99991979844299.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 99244897919999 - 2⁴⁴ = 81652711875583 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99244897919099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3817111458449 + ... + 3817111458474.

It is an arithmetic number, because the mean of its divisors is an integer number (26719780209234).

Almost surely, 2^{99244897919999} is an apocalyptic number.

99244897919999 is a deficient number, since it is larger than the sum of its proper divisors (7634222916937).

99244897919999 is a wasteful number, since it uses less digits than its factorization.

99244897919999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7634222916936.

The product of its digits is 77139724032, while the sum is 98.

The spelling of 99244897919999 in words is "ninety-nine trillion, two hundred forty-four billion, eight hundred ninety-seven million, nine hundred nineteen thousand, nine hundred ninety-nine".