12289917605 has 48 divisors (see below), whose sum is σ = 17795381760. Its totient is φ = 8115811200.

The previous prime is 12289917571. The next prime is 12289917613. The reversal of 12289917605 is 50671998221.

It is not a de Polignac number, because 12289917605 - 2³⁰ = 11216175781 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1598711 + ... + 1606379.

It is an arithmetic number, because the mean of its divisors is an integer number (370737120).

Almost surely, 2^12289917605 is an apocalyptic number.

It is an amenable number.

12289917605 is a deficient number, since it is larger than the sum of its proper divisors (5505464155).

12289917605 is a wasteful number, since it uses less digits than its factorization.

12289917605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7930 (or 7923 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 50.

The spelling of 12289917605 in words is "twelve billion, two hundred eighty-nine million, nine hundred seventeen thousand, six hundred five".