12180752435 has 4 divisors (see below), whose sum is σ = 14616902928. Its totient is φ = 9744601944.

The previous prime is 12180752431. The next prime is 12180752449. The reversal of 12180752435 is 53425708121.

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 12180752435 - 2² = 12180752431 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12180752431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1218075239 + ... + 1218075248.

It is an arithmetic number, because the mean of its divisors is an integer number (3654225732).

Almost surely, 2^12180752435 is an apocalyptic number.

12180752435 is a deficient number, since it is larger than the sum of its proper divisors (2436150493).

12180752435 is an equidigital number, since it uses as much as digits as its factorization.

12180752435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2436150492.

The product of its (nonzero) digits is 67200, while the sum is 38.

The spelling of 12180752435 in words is "twelve billion, one hundred eighty million, seven hundred fifty-two thousand, four hundred thirty-five".