12287921885 has 8 divisors (see below), whose sum is σ = 14932158720. Its totient is φ = 9705902544.

The previous prime is 12287921869. The next prime is 12287921897. The reversal of 12287921885 is 58812978221.

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 12287921885 - 2⁴ = 12287921869 is a prime.

It is a congruent 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, 15553937 + ... + 15554726.

It is an arithmetic number, because the mean of its divisors is an integer number (1866519840).

Almost surely, 2^12287921885 is an apocalyptic number.

It is an amenable number.

12287921885 is a deficient number, since it is larger than the sum of its proper divisors (2644236835).

12287921885 is an equidigital number, since it uses as much as digits as its factorization.

12287921885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31108747.

The product of its digits is 1290240, while the sum is 53.

The spelling of 12287921885 in words is "twelve billion, two hundred eighty-seven million, nine hundred twenty-one thousand, eight hundred eighty-five".