12418318772 has 12 divisors (see below), whose sum is σ = 21732838176. Its totient is φ = 6208936440.

The previous prime is 12418318741. The next prime is 12418318789. The reversal of 12418318772 is 27781381421.

It is a happy number.

It is a super-2 number, since 2×12418318772² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188663 + ... + 245825.

It is an arithmetic number, because the mean of its divisors is an integer number (1811069848).

Almost surely, 2^12418318772 is an apocalyptic number.

It is an amenable number.

12418318772 is a deficient number, since it is larger than the sum of its proper divisors (9314519404).

12418318772 is a wasteful number, since it uses less digits than its factorization.

12418318772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111478 (or 111476 counting only the distinct ones).

The product of its digits is 150528, while the sum is 44.

The spelling of 12418318772 in words is "twelve billion, four hundred eighteen million, three hundred eighteen thousand, seven hundred seventy-two".