12343640506 has 32 divisors (see below), whose sum is σ = 19605081600. Its totient is φ = 5827844880.

The previous prime is 12343640489. The next prime is 12343640611. The reversal of 12343640506 is 60504634321.

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, 1919176 + ... + 1925596.

It is an arithmetic number, because the mean of its divisors is an integer number (612658800).

Almost surely, 2^12343640506 is an apocalyptic number.

12343640506 is a deficient number, since it is larger than the sum of its proper divisors (7261441094).

12343640506 is an frugal number, since it uses more digits than its factorization.

12343640506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6571 (or 6525 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 34.

The spelling of 12343640506 in words is "twelve billion, three hundred forty-three million, six hundred forty thousand, five hundred six".