19893552836 has 12 divisors (see below), whose sum is σ = 34825254912. Its totient is φ = 9943480008.

The previous prime is 19893552829. The next prime is 19893552869. The reversal of 19893552836 is 63825539891.

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, 810500 + ... + 834683.

It is an arithmetic number, because the mean of its divisors is an integer number (2902104576).

Almost surely, 2^19893552836 is an apocalyptic number.

It is an amenable number.

19893552836 is a deficient number, since it is larger than the sum of its proper divisors (14931702076).

19893552836 is a wasteful number, since it uses less digits than its factorization.

19893552836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1648210 (or 1648208 counting only the distinct ones).

The product of its digits is 13996800, while the sum is 59.

The spelling of 19893552836 in words is "nineteen billion, eight hundred ninety-three million, five hundred fifty-two thousand, eight hundred thirty-six".