12547287303538 has 8 divisors (see below), whose sum is σ = 20268694874988. Its totient is φ = 5791055678544.

The previous prime is 12547287303511. The next prime is 12547287303539. The reversal of 12547287303538 is 83530378274521.

It can be written as a sum of positive squares in 2 ways, for example, as 12485784791529 + 61502512009 = 3533523^2 + 247997^2 .

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

It is not an unprimeable number, because it can be changed into a prime (12547287303539) 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, 241293986581 + ... + 241293986632.

Almost surely, 2^{12547287303538} is an apocalyptic number.

12547287303538 is a deficient number, since it is larger than the sum of its proper divisors (7721407571450).

12547287303538 is a wasteful number, since it uses less digits than its factorization.

12547287303538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482587973228.

The product of its (nonzero) digits is 33868800, while the sum is 58.

The spelling of 12547287303538 in words is "twelve trillion, five hundred forty-seven billion, two hundred eighty-seven million, three hundred three thousand, five hundred thirty-eight".