19806107028 has 48 divisors (see below), whose sum is σ = 46685467584. Its totient is φ = 6534823680.

The previous prime is 19806106997. The next prime is 19806107039. The reversal of 19806107028 is 82070160891.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1690326 + ... + 1702002.

It is an arithmetic number, because the mean of its divisors is an integer number (972613908).

Almost surely, 2^19806107028 is an apocalyptic number.

It is an amenable number.

19806107028 is an abundant number, since it is smaller than the sum of its proper divisors (26879360556).

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

19806107028 is a wasteful number, since it uses less digits than its factorization.

19806107028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13112 (or 13110 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 42.

The spelling of 19806107028 in words is "nineteen billion, eight hundred six million, one hundred seven thousand, twenty-eight".