12823811515 has 8 divisors (see below), whose sum is σ = 15390057600. Its totient is φ = 10258060032.

The previous prime is 12823811489. The next prime is 12823811563. The reversal of 12823811515 is 51511832821.

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 12823811515 - 2⁷ = 12823811387 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63990 + ... + 172459.

It is an arithmetic number, because the mean of its divisors is an integer number (1923757200).

Almost surely, 2^12823811515 is an apocalyptic number.

12823811515 is a deficient number, since it is larger than the sum of its proper divisors (2566246085).

12823811515 is a wasteful number, since it uses less digits than its factorization.

12823811515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247301.

The product of its digits is 19200, while the sum is 37.

The spelling of 12823811515 in words is "twelve billion, eight hundred twenty-three million, eight hundred eleven thousand, five hundred fifteen".