12518017347 has 16 divisors (see below), whose sum is σ = 18384807168. Its totient is φ = 7513018080.

The previous prime is 12518017333. The next prime is 12518017357. The reversal of 12518017347 is 74371081521.

It is a happy number.

It is not a de Polignac number, because 12518017347 - 2⁴ = 12518017331 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12518017357) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1838028 + ... + 1844825.

It is an arithmetic number, because the mean of its divisors is an integer number (1149050448).

Almost surely, 2^12518017347 is an apocalyptic number.

12518017347 is a deficient number, since it is larger than the sum of its proper divisors (5866789821).

12518017347 is a wasteful number, since it uses less digits than its factorization.

12518017347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3682970.

The product of its (nonzero) digits is 47040, while the sum is 39.

Adding to 12518017347 its reverse (74371081521), we get a palindrome (86889098868).

The spelling of 12518017347 in words is "twelve billion, five hundred eighteen million, seventeen thousand, three hundred forty-seven".