19804454296 has 96 divisors (see below), whose sum is σ = 42278423040. Its totient is φ = 8684984000.

The previous prime is 19804454287. The next prime is 19804454347. The reversal of 19804454296 is 69245440891.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3227151 + ... + 3233281.

It is an arithmetic number, because the mean of its divisors is an integer number (440400240).

Almost surely, 2^19804454296 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19804454296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21139211520).

19804454296 is an abundant number, since it is smaller than the sum of its proper divisors (22473968744).

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

19804454296 is a wasteful number, since it uses less digits than its factorization.

19804454296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6277 (or 6262 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 52.

The spelling of 19804454296 in words is "nineteen billion, eight hundred four million, four hundred fifty-four thousand, two hundred ninety-six".