19196251348019 has 4 divisors (see below), whose sum is σ = 19197096387744. Its totient is φ = 19195406308296.

The previous prime is 19196251348007. The next prime is 19196251348051. The reversal of 19196251348019 is 91084315269191.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19196251348019 is a prime.

It is a super-2 number, since 2×19196251348019² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19196251308019) 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, 422485787 + ... + 422531220.

It is an arithmetic number, because the mean of its divisors is an integer number (4799274096936).

Almost surely, 2^{19196251348019} is an apocalyptic number.

19196251348019 is a deficient number, since it is larger than the sum of its proper divisors (845039725).

19196251348019 is an equidigital number, since it uses as much as digits as its factorization.

19196251348019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 845039724.

The product of its (nonzero) digits is 4199040, while the sum is 59.

The spelling of 19196251348019 in words is "nineteen trillion, one hundred ninety-six billion, two hundred fifty-one million, three hundred forty-eight thousand, nineteen".