12091048985 has 8 divisors (see below), whose sum is σ = 14517407040. Its totient is φ = 9667407024.

The previous prime is 12091048979. The next prime is 12091048993. The reversal of 12091048985 is 58984019021.

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

It is a cyclic number.

It is not a de Polignac number, because 12091048985 - 2²⁸ = 11822613529 is a prime.

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, 669215 + ... + 687044.

It is an arithmetic number, because the mean of its divisors is an integer number (1814675880).

Almost surely, 2^12091048985 is an apocalyptic number.

It is an amenable number.

12091048985 is a deficient number, since it is larger than the sum of its proper divisors (2426358055).

12091048985 is a wasteful number, since it uses less digits than its factorization.

12091048985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1358047.

The product of its (nonzero) digits is 207360, while the sum is 47.

The spelling of 12091048985 in words is "twelve billion, ninety-one million, forty-eight thousand, nine hundred eighty-five".