19909460886 has 64 divisors (see below), whose sum is σ = 49845818880. Its totient is φ = 5169185280.

The previous prime is 19909460873. The next prime is 19909460927. The reversal of 19909460886 is 68806490991.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 460060 + ... + 501471.

It is an arithmetic number, because the mean of its divisors is an integer number (778840920).

Almost surely, 2^19909460886 is an apocalyptic number.

19909460886 is an abundant number, since it is smaller than the sum of its proper divisors (29936357994).

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

19909460886 is a wasteful number, since it uses less digits than its factorization.

19909460886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 961589.

The product of its (nonzero) digits is 6718464, while the sum is 60.

The spelling of 19909460886 in words is "nineteen billion, nine hundred nine million, four hundred sixty thousand, eight hundred eighty-six".