12305507578 has 32 divisors (see below), whose sum is σ = 22727303424. Its totient is φ = 4866089472.

The previous prime is 12305507569. The next prime is 12305507611. The reversal of 12305507578 is 87570550321.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 470851 + ... + 496297.

It is an arithmetic number, because the mean of its divisors is an integer number (710228232).

Almost surely, 2^12305507578 is an apocalyptic number.

12305507578 is a deficient number, since it is larger than the sum of its proper divisors (10421795846).

12305507578 is a wasteful number, since it uses less digits than its factorization.

12305507578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28126.

The product of its (nonzero) digits is 294000, while the sum is 43.

The spelling of 12305507578 in words is "twelve billion, three hundred five million, five hundred seven thousand, five hundred seventy-eight".