19834109852 has 24 divisors (see below), whose sum is σ = 34771968000. Its totient is φ = 9899282736.

The previous prime is 19834109849. The next prime is 19834109909. The reversal of 19834109852 is 25890143891.

It is a super-3 number, since 3×19834109852³ (a number of 32 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 19834109852.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8857349 + ... + 8859587.

It is an arithmetic number, because the mean of its divisors is an integer number (1448832000).

Almost surely, 2^19834109852 is an apocalyptic number.

It is an amenable number.

19834109852 is a deficient number, since it is larger than the sum of its proper divisors (14937858148).

19834109852 is a wasteful number, since it uses less digits than its factorization.

19834109852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5225 (or 5223 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 50.

The spelling of 19834109852 in words is "nineteen billion, eight hundred thirty-four million, one hundred nine thousand, eight hundred fifty-two".