19449699628 has 12 divisors (see below), whose sum is σ = 34828532200. Its totient is φ = 9498690432.

The previous prime is 19449699617. The next prime is 19449699631. The reversal of 19449699628 is 82699694491.

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, 56539653 + ... + 56539996.

Almost surely, 2^19449699628 is an apocalyptic number.

It is an amenable number.

19449699628 is a deficient number, since it is larger than the sum of its proper divisors (15378832572).

19449699628 is a wasteful number, since it uses less digits than its factorization.

19449699628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113079696 (or 113079694 counting only the distinct ones).

The product of its digits is 60466176, while the sum is 67.

The spelling of 19449699628 in words is "nineteen billion, four hundred forty-nine million, six hundred ninety-nine thousand, six hundred twenty-eight".