20198099873 has 8 divisors (see below), whose sum is σ = 23086568640. Its totient is φ = 17310387600.

The previous prime is 20198099813. The next prime is 20198099963. The reversal of 20198099873 is 37899089102.

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 20198099873 - 2²² = 20193905569 is a prime.

It is a super-2 number, since 2×20198099873² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20198099813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130703 + ... + 239748.

It is an arithmetic number, because the mean of its divisors is an integer number (2885821080).

Almost surely, 2^20198099873 is an apocalyptic number.

It is an amenable number.

20198099873 is a deficient number, since it is larger than the sum of its proper divisors (2888468767).

20198099873 is an equidigital number, since it uses as much as digits as its factorization.

20198099873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378247.

The product of its (nonzero) digits is 1959552, while the sum is 56.

The spelling of 20198099873 in words is "twenty billion, one hundred ninety-eight million, ninety-nine thousand, eight hundred seventy-three".