12515732522542 has 8 divisors (see below), whose sum is σ = 18799709493600. Its totient is φ = 6249162691344.

The previous prime is 12515732522519. The next prime is 12515732522543. The reversal of 12515732522542 is 24522523751521.

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

It is a junction number, because it is equal to n+sod(n) for n = 12515732522492 and 12515732522501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12515732522543) 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, 4351783167 + ... + 4351786042.

It is an arithmetic number, because the mean of its divisors is an integer number (2349963686700).

Almost surely, 2^{12515732522542} is an apocalyptic number.

12515732522542 is a deficient number, since it is larger than the sum of its proper divisors (6283976971058).

12515732522542 is an equidigital number, since it uses as much as digits as its factorization.

12515732522542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8703569930.

The product of its digits is 1680000, while the sum is 46.

The spelling of 12515732522542 in words is "twelve trillion, five hundred fifteen billion, seven hundred thirty-two million, five hundred twenty-two thousand, five hundred forty-two".