1091607190404 has 12 divisors (see below), whose sum is σ = 2547083444304. Its totient is φ = 363869063464.

The previous prime is 1091607190391. The next prime is 1091607190451. The reversal of 1091607190404 is 4040917061901.

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 45483632922 + ... + 45483632945.

It is an arithmetic number, because the mean of its divisors is an integer number (212256953692).

Almost surely, 2^{1091607190404} is an apocalyptic number.

It is an amenable number.

1091607190404 is an abundant number, since it is smaller than the sum of its proper divisors (1455476253900).

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

1091607190404 is a wasteful number, since it uses less digits than its factorization.

1091607190404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90967265874 (or 90967265872 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 42.

The spelling of 1091607190404 in words is "one trillion, ninety-one billion, six hundred seven million, one hundred ninety thousand, four hundred four".