19099898495 has 4 divisors (see below), whose sum is σ = 22919878200. Its totient is φ = 15279918792.

The previous prime is 19099898491. The next prime is 19099898513. The reversal of 19099898495 is 59489899091.

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 19099898495 - 2² = 19099898491 is a prime.

It is a super-2 number, since 2×19099898495² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19099898491) 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 3 ways as a sum of consecutive naturals, for example, 1909989845 + ... + 1909989854.

It is an arithmetic number, because the mean of its divisors is an integer number (5729969550).

Almost surely, 2^19099898495 is an apocalyptic number.

19099898495 is a deficient number, since it is larger than the sum of its proper divisors (3819979705).

19099898495 is an equidigital number, since it uses as much as digits as its factorization.

19099898495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3819979704.

The product of its (nonzero) digits is 75582720, while the sum is 71.

The spelling of 19099898495 in words is "nineteen billion, ninety-nine million, eight hundred ninety-eight thousand, four hundred ninety-five".