12506388745 has 8 divisors (see below), whose sum is σ = 15491784960. Its totient is φ = 9682365360.

The previous prime is 12506388743. The next prime is 12506388749. The reversal of 12506388745 is 54788360521.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12506388745 - 2¹ = 12506388743 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12506388743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40343035 + ... + 40343344.

It is an arithmetic number, because the mean of its divisors is an integer number (1936473120).

Almost surely, 2^12506388745 is an apocalyptic number.

It is an amenable number.

12506388745 is a deficient number, since it is larger than the sum of its proper divisors (2985396215).

12506388745 is an equidigital number, since it uses as much as digits as its factorization.

12506388745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80686415.

The product of its (nonzero) digits is 1612800, while the sum is 49.

The spelling of 12506388745 in words is "twelve billion, five hundred six million, three hundred eighty-eight thousand, seven hundred forty-five".