19091011092 has 12 divisors (see below), whose sum is σ = 44545692576. Its totient is φ = 6363670360.

The previous prime is 19091011061. The next prime is 19091011109. The reversal of 19091011092 is 29011019091.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 795458784 + ... + 795458807.

It is an arithmetic number, because the mean of its divisors is an integer number (3712141048).

Almost surely, 2^19091011092 is an apocalyptic number.

19091011092 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19091011092 is an abundant number, since it is smaller than the sum of its proper divisors (25454681484).

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

19091011092 is a wasteful number, since it uses less digits than its factorization.

19091011092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1590917598 (or 1590917596 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 33.

The spelling of 19091011092 in words is "nineteen billion, ninety-one million, eleven thousand, ninety-two".