12318916958 has 32 divisors (see below), whose sum is σ = 20280699648. Its totient is φ = 5586739200.

The previous prime is 12318916921. The next prime is 12318916993. The reversal of 12318916958 is 85961981321.

It is a happy number.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 229766 + ... + 278262.

It is an arithmetic number, because the mean of its divisors is an integer number (633771864).

Almost surely, 2^12318916958 is an apocalyptic number.

12318916958 is a deficient number, since it is larger than the sum of its proper divisors (7961782690).

12318916958 is a wasteful number, since it uses less digits than its factorization.

12318916958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48788.

The product of its digits is 933120, while the sum is 53.

The spelling of 12318916958 in words is "twelve billion, three hundred eighteen million, nine hundred sixteen thousand, nine hundred fifty-eight".