12245667785 has 8 divisors (see below), whose sum is σ = 15825170760. Its totient is φ = 9042954624.

The previous prime is 12245667779. The next prime is 12245667821. The reversal of 12245667785 is 58776654221.

It can be written as a sum of positive squares in 4 ways, for example, as 76930441 + 12168737344 = 8771^2 + 110312^2 .

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 12245667785 - 2¹⁴ = 12245651401 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94197380 + ... + 94197509.

It is an arithmetic number, because the mean of its divisors is an integer number (1978146345).

Almost surely, 2^12245667785 is an apocalyptic number.

It is an amenable number.

12245667785 is a deficient number, since it is larger than the sum of its proper divisors (3579502975).

12245667785 is a wasteful number, since it uses less digits than its factorization.

12245667785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188394907.

The product of its digits is 5644800, while the sum is 53.

The spelling of 12245667785 in words is "twelve billion, two hundred forty-five million, six hundred sixty-seven thousand, seven hundred eighty-five".