19533872908 has 24 divisors (see below), whose sum is σ = 37380554064. Its totient is φ = 8857934400.

The previous prime is 19533872881. The next prime is 19533872909. The reversal of 19533872908 is 80927833591.

It is not an unprimeable number, because it can be changed into a prime (19533872909) 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 7 ways as a sum of consecutive naturals, for example, 508735 + ... + 545782.

It is an arithmetic number, because the mean of its divisors is an integer number (1557523086).

Almost surely, 2^19533872908 is an apocalyptic number.

It is an amenable number.

19533872908 is a deficient number, since it is larger than the sum of its proper divisors (17846681156).

19533872908 is a wasteful number, since it uses less digits than its factorization.

19533872908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1054953 (or 1054951 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 55.

The spelling of 19533872908 in words is "nineteen billion, five hundred thirty-three million, eight hundred seventy-two thousand, nine hundred eight".