19425209086 has 8 divisors (see below), whose sum is σ = 30851802720. Its totient is φ = 9141274848.

The previous prime is 19425209081. The next prime is 19425209101. The reversal of 19425209086 is 68090252491.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19425209081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 285664806 + ... + 285664873.

It is an arithmetic number, because the mean of its divisors is an integer number (3856475340).

Almost surely, 2^19425209086 is an apocalyptic number.

19425209086 is a deficient number, since it is larger than the sum of its proper divisors (11426593634).

19425209086 is a wasteful number, since it uses less digits than its factorization.

19425209086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571329698.

The product of its (nonzero) digits is 311040, while the sum is 46.

The spelling of 19425209086 in words is "nineteen billion, four hundred twenty-five million, two hundred nine thousand, eighty-six".