12143640607 has 6 divisors (see below), whose sum is σ = 13878779624. Its totient is φ = 10408584900.

The previous prime is 12143640599. The next prime is 12143640629. The reversal of 12143640607 is 70604634121.

It is not a de Polignac number, because 12143640607 - 2³ = 12143640599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12143640307) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 270732 + ... + 312382.

Almost surely, 2^12143640607 is an apocalyptic number.

12143640607 is a deficient number, since it is larger than the sum of its proper divisors (1735139017).

12143640607 is an frugal number, since it uses more digits than its factorization.

12143640607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83309 (or 41658 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 34.

The spelling of 12143640607 in words is "twelve billion, one hundred forty-three million, six hundred forty thousand, six hundred seven".