19478494853 has 8 divisors (see below), whose sum is σ = 19605175200. Its totient is φ = 19352013328.

The previous prime is 19478494831. The next prime is 19478494883. The reversal of 19478494853 is 35849487491.

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 19478494853 - 2¹⁶ = 19478429317 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 (19478494883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149450 + ... + 247572.

It is an arithmetic number, because the mean of its divisors is an integer number (2450646900).

Almost surely, 2^19478494853 is an apocalyptic number.

It is an amenable number.

19478494853 is a deficient number, since it is larger than the sum of its proper divisors (126680347).

19478494853 is a wasteful number, since it uses less digits than its factorization.

19478494853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99411.

The product of its digits is 34836480, while the sum is 62.

The spelling of 19478494853 in words is "nineteen billion, four hundred seventy-eight million, four hundred ninety-four thousand, eight hundred fifty-three".