1089188671409 has 8 divisors (see below), whose sum is σ = 1097578155168. Its totient is φ = 1080800325280.

The previous prime is 1089188671381. The next prime is 1089188671411. The reversal of 1089188671409 is 9041768819801.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1089188671409 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1089188671489) 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 7 ways as a sum of consecutive naturals, for example, 1690394 + ... + 2244060.

It is an arithmetic number, because the mean of its divisors is an integer number (137197269396).

Almost surely, 2^{1089188671409} is an apocalyptic number.

It is an amenable number.

1089188671409 is a deficient number, since it is larger than the sum of its proper divisors (8389483759).

1089188671409 is a wasteful number, since it uses less digits than its factorization.

1089188671409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568815.

The product of its (nonzero) digits is 6967296, while the sum is 62.

The spelling of 1089188671409 in words is "one trillion, eighty-nine billion, one hundred eighty-eight million, six hundred seventy-one thousand, four hundred nine".