19481928748 has 12 divisors (see below), whose sum is σ = 34270026280. Its totient is φ = 9690492672.

The previous prime is 19481928743. The next prime is 19481928769. The reversal of 19481928748 is 84782918491.

It is not an unprimeable number, because it can be changed into a prime (19481928743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12617058 + ... + 12618601.

Almost surely, 2^19481928748 is an apocalyptic number.

It is an amenable number.

19481928748 is a deficient number, since it is larger than the sum of its proper divisors (14788097532).

19481928748 is a wasteful number, since it uses less digits than its factorization.

19481928748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25235856 (or 25235854 counting only the distinct ones).

The product of its digits is 9289728, while the sum is 61.

The spelling of 19481928748 in words is "nineteen billion, four hundred eighty-one million, nine hundred twenty-eight thousand, seven hundred forty-eight".