12515043215 has 8 divisors (see below), whose sum is σ = 15808475760. Its totient is φ = 9485085312.

The previous prime is 12515043209. The next prime is 12515043217. The reversal of 12515043215 is 51234051521.

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

It is a cyclic number.

It is not a de Polignac number, because 12515043215 - 2²⁴ = 12498265999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12515043217) 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, 65868554 + ... + 65868743.

It is an arithmetic number, because the mean of its divisors is an integer number (1976059470).

Almost surely, 2^12515043215 is an apocalyptic number.

12515043215 is a deficient number, since it is larger than the sum of its proper divisors (3293432545).

12515043215 is a wasteful number, since it uses less digits than its factorization.

12515043215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131737321.

The product of its (nonzero) digits is 6000, while the sum is 29.

Adding to 12515043215 its reverse (51234051521), we get a palindrome (63749094736).

The spelling of 12515043215 in words is "twelve billion, five hundred fifteen million, forty-three thousand, two hundred fifteen".