19100002112 has 56 divisors (see below), whose sum is σ = 40191391296. Its totient is φ = 8974727168.

The previous prime is 19100002099. The next prime is 19100002157. The reversal of 19100002112 is 21120000191.

It is a Harshad number since it is a multiple of its sum of digits (17).

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, 730253 + ... + 755955.

It is an arithmetic number, because the mean of its divisors is an integer number (717703416).

Almost surely, 2^19100002112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19100002112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20095695648).

19100002112 is an abundant number, since it is smaller than the sum of its proper divisors (21091389184).

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

19100002112 is a wasteful number, since it uses less digits than its factorization.

19100002112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26415 (or 26405 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 17.

The spelling of 19100002112 in words is "nineteen billion, one hundred million, two thousand, one hundred twelve".