19860910852 has 6 divisors (see below), whose sum is σ = 34756593998. Its totient is φ = 9930455424.

The previous prime is 19860910829. The next prime is 19860910871. The reversal of 19860910852 is 25801906891.

It can be written as a sum of positive squares in only one way, i.e., 13297318596 + 6563592256 = 115314^2 + 81016^2 .

It is a junction number, because it is equal to n+sod(n) for n = 19860910796 and 19860910805.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2482613853 + ... + 2482613860.

Almost surely, 2^19860910852 is an apocalyptic number.

It is an amenable number.

19860910852 is a deficient number, since it is larger than the sum of its proper divisors (14895683146).

19860910852 is a wasteful number, since it uses less digits than its factorization.

19860910852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4965227717 (or 4965227715 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 49.

The spelling of 19860910852 in words is "nineteen billion, eight hundred sixty million, nine hundred ten thousand, eight hundred fifty-two".