12208670785 has 16 divisors (see below), whose sum is σ = 15576585552. Its totient is φ = 9154252800.

The previous prime is 12208670767. The next prime is 12208670797. The reversal of 12208670785 is 58707680221.

It can be written as a sum of positive squares in 8 ways, for example, as 259338816 + 11949331969 = 16104^2 + 109313^2 .

It is not a de Polignac number, because 12208670785 - 2¹¹ = 12208668737 is a prime.

It is a Duffinian number.

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, 277506 + ... + 318475.

It is an arithmetic number, because the mean of its divisors is an integer number (973536597).

Almost surely, 2^12208670785 is an apocalyptic number.

It is an amenable number.

12208670785 is a deficient number, since it is larger than the sum of its proper divisors (3367914767).

12208670785 is a wasteful number, since it uses less digits than its factorization.

12208670785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596244.

The product of its (nonzero) digits is 376320, while the sum is 46.

The spelling of 12208670785 in words is "twelve billion, two hundred eight million, six hundred seventy thousand, seven hundred eighty-five".