19535093824 has 21 divisors (see below), whose sum is σ = 38767170751. Its totient is φ = 9766987840.

The previous prime is 19535093803. The next prime is 19535093843. The reversal of 19535093824 is 42839053591.

The square root of 19535093824 is 139768.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1109409 + ... + 1126879.

Almost surely, 2^19535093824 is an apocalyptic number.

19535093824 is the 139768-th square number.

It is an amenable number.

19535093824 is a deficient number, since it is larger than the sum of its proper divisors (19232076927).

19535093824 is an frugal number, since it uses more digits than its factorization.

19535093824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34954 (or 17473 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 49.

Multiplying 19535093824 by its sum of digits (49), we get a square (957219597376 = 978376²).

The spelling of 19535093824 in words is "nineteen billion, five hundred thirty-five million, ninety-three thousand, eight hundred twenty-four".