19164416794 has 4 divisors (see below), whose sum is σ = 28746625194. Its totient is φ = 9582208396.

The previous prime is 19164416771. The next prime is 19164416839. The reversal of 19164416794 is 49761446191.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49761446191 = 70139 ⋅709469.

It can be written as a sum of positive squares in only one way, i.e., 17925728769 + 1238688025 = 133887^2 + 35195^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4791104197 + ... + 4791104200.

Almost surely, 2^19164416794 is an apocalyptic number.

19164416794 is a deficient number, since it is larger than the sum of its proper divisors (9582208400).

19164416794 is an equidigital number, since it uses as much as digits as its factorization.

19164416794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9582208399.

The product of its digits is 1306368, while the sum is 52.

The spelling of 19164416794 in words is "nineteen billion, one hundred sixty-four million, four hundred sixteen thousand, seven hundred ninety-four".