19559514198 has 64 divisors (see below), whose sum is σ = 45307809792. Its totient is φ = 5513840640.

The previous prime is 19559514181. The next prime is 19559514199. The reversal of 19559514198 is 89141595591.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19559514199) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1049118 + ... + 1067598.

It is an arithmetic number, because the mean of its divisors is an integer number (707934528).

Almost surely, 2^19559514198 is an apocalyptic number.

19559514198 is an abundant number, since it is smaller than the sum of its proper divisors (25748295594).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19559514198 is a wasteful number, since it uses less digits than its factorization.

19559514198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18829.

The product of its digits is 2916000, while the sum is 57.

The spelling of 19559514198 in words is "nineteen billion, five hundred fifty-nine million, five hundred fourteen thousand, one hundred ninety-eight".