318646154312 has 16 divisors (see below), whose sum is σ = 598158706860. Its totient is φ = 159137165824.

The previous prime is 318646154311. The next prime is 318646154347. The reversal of 318646154312 is 213451646813.

It can be written as a sum of positive squares in 2 ways, for example, as 318202040836 + 444113476 = 564094^2 + 21074^2 .

It is not an unprimeable number, because it can be changed into a prime (318646154311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23231633 + ... + 23245344.

Almost surely, 2^318646154312 is an apocalyptic number.

It is an amenable number.

318646154312 is a deficient number, since it is larger than the sum of its proper divisors (279512552548).

318646154312 is a wasteful number, since it uses less digits than its factorization.

318646154312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46477840 (or 46477836 counting only the distinct ones).

The product of its digits is 414720, while the sum is 44.

The spelling of 318646154312 in words is "three hundred eighteen billion, six hundred forty-six million, one hundred fifty-four thousand, three hundred twelve".