12239555635 has 4 divisors (see below), whose sum is σ = 14687466768. Its totient is φ = 9791644504.

The previous prime is 12239555533. The next prime is 12239555719. The reversal of 12239555635 is 53655593221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12239555635 - 2⁹ = 12239555123 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1223955559 + ... + 1223955568.

It is an arithmetic number, because the mean of its divisors is an integer number (3671866692).

Almost surely, 2^12239555635 is an apocalyptic number.

12239555635 is a deficient number, since it is larger than the sum of its proper divisors (2447911133).

12239555635 is an equidigital number, since it uses as much as digits as its factorization.

12239555635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2447911132.

The product of its digits is 1215000, while the sum is 46.

The spelling of 12239555635 in words is "twelve billion, two hundred thirty-nine million, five hundred fifty-five thousand, six hundred thirty-five".