12045487718 has 32 divisors (see below), whose sum is σ = 19783906560. Its totient is φ = 5454963360.

The previous prime is 12045487697. The next prime is 12045487721. The reversal of 12045487718 is 81778454021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12456071 + ... + 12457037.

It is an arithmetic number, because the mean of its divisors is an integer number (618247080).

Almost surely, 2^12045487718 is an apocalyptic number.

12045487718 is a deficient number, since it is larger than the sum of its proper divisors (7738418842).

12045487718 is a wasteful number, since it uses less digits than its factorization.

12045487718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2492.

The product of its (nonzero) digits is 501760, while the sum is 47.

The spelling of 12045487718 in words is "twelve billion, forty-five million, four hundred eighty-seven thousand, seven hundred eighteen".