1089916809515 has 8 divisors (see below), whose sum is σ = 1314676857408. Its totient is φ = 867415656960.

The previous prime is 1089916809481. The next prime is 1089916809577. The reversal of 1089916809515 is 5159086199801.

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

It is not a de Polignac number, because 1089916809515 - 2¹⁴ = 1089916793131 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 564722771 + ... + 564724700.

It is an arithmetic number, because the mean of its divisors is an integer number (164334607176).

Almost surely, 2^{1089916809515} is an apocalyptic number.

1089916809515 is a deficient number, since it is larger than the sum of its proper divisors (224760047893).

1089916809515 is a wasteful number, since it uses less digits than its factorization.

1089916809515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1129447669.

The product of its (nonzero) digits is 6998400, while the sum is 62.

The spelling of 1089916809515 in words is "one trillion, eighty-nine billion, nine hundred sixteen million, eight hundred nine thousand, five hundred fifteen".