19490514193 has 4 divisors (see below), whose sum is σ = 19541403648. Its totient is φ = 19439624740.

The previous prime is 19490514187. The next prime is 19490514217. The reversal of 19490514193 is 39141509491.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 19490514193 - 2⁹ = 19490513681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19490514103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25444153 + ... + 25444918.

It is an arithmetic number, because the mean of its divisors is an integer number (4885350912).

Almost surely, 2^19490514193 is an apocalyptic number.

It is an amenable number.

19490514193 is a deficient number, since it is larger than the sum of its proper divisors (50889455).

19490514193 is an equidigital number, since it uses as much as digits as its factorization.

19490514193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50889454.

The product of its (nonzero) digits is 174960, while the sum is 46.

The spelling of 19490514193 in words is "nineteen billion, four hundred ninety million, five hundred fourteen thousand, one hundred ninety-three".