12515938671 has 8 divisors (see below), whose sum is σ = 16691524864. Its totient is φ = 8342155800.

The previous prime is 12515938621. The next prime is 12515938693. The reversal of 12515938671 is 17683951521.

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

It is not a de Polignac number, because 12515938671 - 2¹⁰ = 12515937647 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12515938671.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12515938621) 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, 434551 + ... + 462456.

It is an arithmetic number, because the mean of its divisors is an integer number (2086440608).

Almost surely, 2^12515938671 is an apocalyptic number.

12515938671 is a deficient number, since it is larger than the sum of its proper divisors (4175586193).

12515938671 is an equidigital number, since it uses as much as digits as its factorization.

12515938671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 901661.

The product of its digits is 453600, while the sum is 48.

The spelling of 12515938671 in words is "twelve billion, five hundred fifteen million, nine hundred thirty-eight thousand, six hundred seventy-one".