12126752615 has 4 divisors (see below), whose sum is σ = 14552103144. Its totient is φ = 9701402088.

The previous prime is 12126752597. The next prime is 12126752623. The reversal of 12126752615 is 51625762121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12126752615 - 2¹² = 12126748519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1212675257 + ... + 1212675266.

It is an arithmetic number, because the mean of its divisors is an integer number (3638025786).

Almost surely, 2^12126752615 is an apocalyptic number.

12126752615 is a deficient number, since it is larger than the sum of its proper divisors (2425350529).

12126752615 is an equidigital number, since it uses as much as digits as its factorization.

12126752615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2425350528.

The product of its digits is 50400, while the sum is 38.

The spelling of 12126752615 in words is "twelve billion, one hundred twenty-six million, seven hundred fifty-two thousand, six hundred fifteen".