19419785206 has 8 divisors (see below), whose sum is σ = 29130814944. Its totient is φ = 9709513560.

The previous prime is 19419785197. The next prime is 19419785227. The reversal of 19419785206 is 60258791491.

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

It is a congruent number.

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 in 3 ways as a sum of consecutive naturals, for example, 120445 + ... + 230968.

It is an arithmetic number, because the mean of its divisors is an integer number (3641351868).

Almost surely, 2^19419785206 is an apocalyptic number.

19419785206 is a deficient number, since it is larger than the sum of its proper divisors (9711029738).

19419785206 is a wasteful number, since it uses less digits than its factorization.

19419785206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379046.

The product of its (nonzero) digits is 1088640, while the sum is 52.

The spelling of 19419785206 in words is "nineteen billion, four hundred nineteen million, seven hundred eighty-five thousand, two hundred six".