19734545204 has 24 divisors (see below), whose sum is σ = 37682674848. Its totient is φ = 8968430240.

The previous prime is 19734545197. The next prime is 19734545213. The reversal of 19734545204 is 40254543791.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187607 + ... + 273249.

It is an arithmetic number, because the mean of its divisors is an integer number (1570111452).

Almost surely, 2^19734545204 is an apocalyptic number.

It is an amenable number.

19734545204 is a deficient number, since it is larger than the sum of its proper divisors (17948129644).

19734545204 is a wasteful number, since it uses less digits than its factorization.

19734545204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90895 (or 90893 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 44.

The spelling of 19734545204 in words is "nineteen billion, seven hundred thirty-four million, five hundred forty-five thousand, two hundred four".