12480387815 has 16 divisors (see below), whose sum is σ = 17371425792. Its totient is φ = 8430247584.

The previous prime is 12480387797. The next prime is 12480387833. The reversal of 12480387815 is 51878308421.

It is an interprime number because it is at equal distance from previous prime (12480387797) and next prime (12480387833).

It is a cyclic number.

It is not a de Polignac number, because 12480387815 - 2¹⁰ = 12480386791 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 12480387815.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2658719 + ... + 2663408.

It is an arithmetic number, because the mean of its divisors is an integer number (1085714112).

Almost surely, 2^12480387815 is an apocalyptic number.

12480387815 is a deficient number, since it is larger than the sum of its proper divisors (4891037977).

12480387815 is an equidigital number, since it uses as much as digits as its factorization.

12480387815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5322206.

The product of its (nonzero) digits is 430080, while the sum is 47.

The spelling of 12480387815 in words is "twelve billion, four hundred eighty million, three hundred eighty-seven thousand, eight hundred fifteen".