19381448474 has 8 divisors (see below), whose sum is σ = 29073653760. Its totient is φ = 9690230556.

The previous prime is 19381448473. The next prime is 19381448491. The reversal of 19381448474 is 47484418391.

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

It is not an unprimeable number, because it can be changed into a prime (19381448473) 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 3 ways as a sum of consecutive naturals, for example, 195644 + ... + 277559.

It is an arithmetic number, because the mean of its divisors is an integer number (3634206720).

Almost surely, 2^19381448474 is an apocalyptic number.

19381448474 is a deficient number, since it is larger than the sum of its proper divisors (9692205286).

19381448474 is a wasteful number, since it uses less digits than its factorization.

19381448474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493684.

The product of its digits is 3096576, while the sum is 53.

The spelling of 19381448474 in words is "nineteen billion, three hundred eighty-one million, four hundred forty-eight thousand, four hundred seventy-four".