19853992286 has 4 divisors (see below), whose sum is σ = 29780988432. Its totient is φ = 9926996142.

The previous prime is 19853992247. The next prime is 19853992307. The reversal of 19853992286 is 68229935891.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 68229935891 = 13 ⋅5248456607.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4963498070 + ... + 4963498073.

It is an arithmetic number, because the mean of its divisors is an integer number (7445247108).

Almost surely, 2^19853992286 is an apocalyptic number.

19853992286 is a deficient number, since it is larger than the sum of its proper divisors (9926996146).

19853992286 is an equidigital number, since it uses as much as digits as its factorization.

19853992286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9926996145.

The product of its digits is 16796160, while the sum is 62.

The spelling of 19853992286 in words is "nineteen billion, eight hundred fifty-three million, nine hundred ninety-two thousand, two hundred eighty-six".