12045546715 has 4 divisors (see below), whose sum is σ = 14454656064. Its totient is φ = 9636437368.

The previous prime is 12045546701. The next prime is 12045546757. The reversal of 12045546715 is 51764554021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51764554021 = 9419 ⋅5495759.

It is a cyclic number.

It is not a de Polignac number, because 12045546715 - 2⁹ = 12045546203 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian 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, 1204554667 + ... + 1204554676.

It is an arithmetic number, because the mean of its divisors is an integer number (3613664016).

Almost surely, 2^12045546715 is an apocalyptic number.

12045546715 is a deficient number, since it is larger than the sum of its proper divisors (2409109349).

12045546715 is an equidigital number, since it uses as much as digits as its factorization.

12045546715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2409109348.

The product of its (nonzero) digits is 168000, while the sum is 40.

The spelling of 12045546715 in words is "twelve billion, forty-five million, five hundred forty-six thousand, seven hundred fifteen".