318648201489 has 24 divisors (see below), whose sum is σ = 463920256800. Its totient is φ = 210748187520.

The previous prime is 318648201479. The next prime is 318648201491. The reversal of 318648201489 is 984102846813.

It is a happy number.

318648201489 is a `hidden beast` number, since 3 + 1 + 86 + 4 + 82 + 0 + 1 + 489 = 666.

It is not a de Polignac number, because 318648201489 - 2⁸ = 318648201233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (318648201439) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4134297 + ... + 4210665.

It is an arithmetic number, because the mean of its divisors is an integer number (19330010700).

Almost surely, 2^318648201489 is an apocalyptic number.

It is an amenable number.

318648201489 is a deficient number, since it is larger than the sum of its proper divisors (145272055311).

318648201489 is a wasteful number, since it uses less digits than its factorization.

318648201489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80045 (or 80042 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 54.

The spelling of 318648201489 in words is "three hundred eighteen billion, six hundred forty-eight million, two hundred one thousand, four hundred eighty-nine".