19136820011 has 8 divisors (see below), whose sum is σ = 19261532880. Its totient is φ = 19012305312.

The previous prime is 19136819971. The next prime is 19136820013. The reversal of 19136820011 is 11002863191.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 19136820011 - 2²⁶ = 19069711147 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 19136820011.

It is not an unprimeable number, because it can be changed into a prime (19136820013) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 146741 + ... + 244553.

It is an arithmetic number, because the mean of its divisors is an integer number (2407691610).

Almost surely, 2^19136820011 is an apocalyptic number.

19136820011 is a deficient number, since it is larger than the sum of its proper divisors (124712869).

19136820011 is a wasteful number, since it uses less digits than its factorization.

19136820011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99085.

The product of its (nonzero) digits is 2592, while the sum is 32.

The spelling of 19136820011 in words is "nineteen billion, one hundred thirty-six million, eight hundred twenty thousand, eleven".