1919100009192 has 64 divisors (see below), whose sum is σ = 4929446421120. Its totient is φ = 622154711808.

The previous prime is 1919100009181. The next prime is 1919100009199. The reversal of 1919100009192 is 2919000019191.

It is not an unprimeable number, because it can be changed into a prime (1919100009199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1720653 + ... + 2607459.

It is an arithmetic number, because the mean of its divisors is an integer number (77022600330).

Almost surely, 2^{1919100009192} is an apocalyptic number.

1919100009192 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1919100009192 is an abundant number, since it is smaller than the sum of its proper divisors (3010346411928).

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

1919100009192 is a wasteful number, since it uses less digits than its factorization.

1919100009192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 889290 (or 889286 counting only the distinct ones).

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

Subtracting 1919100009192 from its reverse (2919000019191), we obtain a palindrome (999900009999).

The spelling of 1919100009192 in words is "one trillion, nine hundred nineteen billion, one hundred million, nine thousand, one hundred ninety-two".