19091009092 has 24 divisors (see below), whose sum is σ = 34215314112. Its totient is φ = 9317868000.

The previous prime is 19091009083. The next prime is 19091009099. The reversal of 19091009092 is 29090019091.

It is not an unprimeable number, because it can be changed into a prime (19091009099) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 304098 + ... + 361465.

It is an arithmetic number, because the mean of its divisors is an integer number (1425638088).

Almost surely, 2^19091009092 is an apocalyptic number.

It is an amenable number.

19091009092 is a deficient number, since it is larger than the sum of its proper divisors (15124305020).

19091009092 is a wasteful number, since it uses less digits than its factorization.

19091009092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665739 (or 665737 counting only the distinct ones).

The product of its (nonzero) digits is 13122, while the sum is 40.

Subtracting 19091009092 from its reverse (29090019091), we obtain a palindrome (9999009999).

The spelling of 19091009092 in words is "nineteen billion, ninety-one million, nine thousand, ninety-two".