12304865785 has 32 divisors (see below), whose sum is σ = 16065423360. Its totient is φ = 9017131968.

The previous prime is 12304865779. The next prime is 12304865809. The reversal of 12304865785 is 58756840321.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12304865785 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 353994 + ... + 387196.

It is an arithmetic number, because the mean of its divisors is an integer number (502044480).

Almost surely, 2^12304865785 is an apocalyptic number.

It is an amenable number.

12304865785 is a deficient number, since it is larger than the sum of its proper divisors (3760557575).

12304865785 is a wasteful number, since it uses less digits than its factorization.

12304865785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33357.

The product of its (nonzero) digits is 1612800, while the sum is 49.

The spelling of 12304865785 in words is "twelve billion, three hundred four million, eight hundred sixty-five thousand, seven hundred eighty-five".