19090919112 has 64 divisors (see below), whose sum is σ = 48083967360. Its totient is φ = 6316262400.

The previous prime is 19090919083. The next prime is 19090919167. The reversal of 19090919112 is 21191909091.

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, 1793518 + ... + 1804130.

It is an arithmetic number, because the mean of its divisors is an integer number (751311990).

Almost surely, 2^19090919112 is an apocalyptic number.

19090919112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19090919112 is an abundant number, since it is smaller than the sum of its proper divisors (28993048248).

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

19090919112 is a wasteful number, since it uses less digits than its factorization.

19090919112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11174 (or 11170 counting only the distinct ones).

The product of its (nonzero) digits is 13122, while the sum is 42.

The spelling of 19090919112 in words is "nineteen billion, ninety million, nine hundred nineteen thousand, one hundred twelve".