19099098706 has 4 divisors (see below), whose sum is σ = 28648648062. Its totient is φ = 9549549352.

The previous prime is 19099098679. The next prime is 19099098713. The reversal of 19099098706 is 60789099091.

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

It can be written as a sum of positive squares in only one way, i.e., 16846742025 + 2252356681 = 129795^2 + 47459^2 .

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4774774675 + ... + 4774774678.

Almost surely, 2^19099098706 is an apocalyptic number.

19099098706 is a deficient number, since it is larger than the sum of its proper divisors (9549549356).

19099098706 is an equidigital number, since it uses as much as digits as its factorization.

19099098706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9549549355.

The product of its (nonzero) digits is 2204496, while the sum is 58.

The spelling of 19099098706 in words is "nineteen billion, ninety-nine million, ninety-eight thousand, seven hundred six".