12345762209 has 16 divisors (see below), whose sum is σ = 13802987520. Its totient is φ = 10947777360.

The previous prime is 12345762197. The next prime is 12345762223. The reversal of 12345762209 is 90226754321.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12345762209 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12345762239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13457 + ... + 157710.

It is an arithmetic number, because the mean of its divisors is an integer number (862686720).

Almost surely, 2^12345762209 is an apocalyptic number.

It is an amenable number.

12345762209 is a deficient number, since it is larger than the sum of its proper divisors (1457225311).

12345762209 is a wasteful number, since it uses less digits than its factorization.

12345762209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171340.

The product of its (nonzero) digits is 181440, while the sum is 41.

The spelling of 12345762209 in words is "twelve billion, three hundred forty-five million, seven hundred sixty-two thousand, two hundred nine".