12823987415 has 8 divisors (see below), whose sum is σ = 15430718400. Its totient is φ = 10231234272.

The previous prime is 12823987391. The next prime is 12823987441. The reversal of 12823987415 is 51478932821.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12823987415 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3492440 + ... + 3496109.

It is an arithmetic number, because the mean of its divisors is an integer number (1928839800).

Almost surely, 2^12823987415 is an apocalyptic number.

12823987415 is a deficient number, since it is larger than the sum of its proper divisors (2606730985).

12823987415 is an equidigital number, since it uses as much as digits as its factorization.

12823987415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6988921.

The product of its digits is 967680, while the sum is 50.

The spelling of 12823987415 in words is "twelve billion, eight hundred twenty-three million, nine hundred eighty-seven thousand, four hundred fifteen".