19853704291199 has 4 divisors (see below), whose sum is σ = 19907801578464. Its totient is φ = 19799607003936.

The previous prime is 19853704291163. The next prime is 19853704291231. The reversal of 19853704291199 is 99119240735891.

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-19853704291199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19853704291129) 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, 27048643082 + ... + 27048643815.

It is an arithmetic number, because the mean of its divisors is an integer number (4976950394616).

Almost surely, 2^{19853704291199} is an apocalyptic number.

19853704291199 is a deficient number, since it is larger than the sum of its proper divisors (54097287265).

19853704291199 is an equidigital number, since it uses as much as digits as its factorization.

19853704291199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54097287264.

The product of its (nonzero) digits is 44089920, while the sum is 68.

The spelling of 19853704291199 in words is "nineteen trillion, eight hundred fifty-three billion, seven hundred four million, two hundred ninety-one thousand, one hundred ninety-nine".