19568649048 has 64 divisors (see below), whose sum is σ = 53319651840. Its totient is φ = 5948571264.

The previous prime is 19568649041. The next prime is 19568649053. The reversal of 19568649048 is 84094686591.

It is a junction number, because it is equal to n+sod(n) for n = 19568648982 and 19568649000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19568649041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 351936 + ... + 403727.

It is an arithmetic number, because the mean of its divisors is an integer number (833119560).

Almost surely, 2^19568649048 is an apocalyptic number.

It is an amenable number.

19568649048 is an abundant number, since it is smaller than the sum of its proper divisors (33751002792).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19568649048 is a wasteful number, since it uses less digits than its factorization.

19568649048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755768 (or 755764 counting only the distinct ones).

The product of its (nonzero) digits is 14929920, while the sum is 60.

The spelling of 19568649048 in words is "nineteen billion, five hundred sixty-eight million, six hundred forty-nine thousand, forty-eight".