19860910853 has 4 divisors (see below), whose sum is σ = 22698183840. Its totient is φ = 17023637868.

The previous prime is 19860910829. The next prime is 19860910871. The reversal of 19860910853 is 35801906891.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 19860910853 - 2¹⁰ = 19860909829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19860910253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1418636483 + ... + 1418636496.

It is an arithmetic number, because the mean of its divisors is an integer number (5674545960).

Almost surely, 2^19860910853 is an apocalyptic number.

It is an amenable number.

19860910853 is a deficient number, since it is larger than the sum of its proper divisors (2837272987).

19860910853 is an equidigital number, since it uses as much as digits as its factorization.

19860910853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2837272986.

The product of its (nonzero) digits is 466560, while the sum is 50.

The spelling of 19860910853 in words is "nineteen billion, eight hundred sixty million, nine hundred ten thousand, eight hundred fifty-three".