19853409275 has 12 divisors (see below), whose sum is σ = 28135117392. Its totient is φ = 13613766240.

The previous prime is 19853409271. The next prime is 19853409281. The reversal of 19853409275 is 57290435891.

It is not a de Polignac number, because 19853409275 - 2² = 19853409271 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19853409271) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56723852 + ... + 56724201.

It is an arithmetic number, because the mean of its divisors is an integer number (2344593116).

Almost surely, 2^19853409275 is an apocalyptic number.

19853409275 is a deficient number, since it is larger than the sum of its proper divisors (8281708117).

19853409275 is a wasteful number, since it uses less digits than its factorization.

19853409275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113448070 (or 113448065 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 53.

The spelling of 19853409275 in words is "nineteen billion, eight hundred fifty-three million, four hundred nine thousand, two hundred seventy-five".