5318978548944 has 80 divisors (see below), whose sum is σ = 13759153911360. Its totient is φ = 1770611758080.

The previous prime is 5318978548909. The next prime is 5318978548973. The reversal of 5318978548944 is 4498458798135.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 435582999 + ... + 435595209.

It is an arithmetic number, because the mean of its divisors is an integer number (171989423892).

Almost surely, 2^{5318978548944} is an apocalyptic number.

It is an amenable number.

5318978548944 is an abundant number, since it is smaller than the sum of its proper divisors (8440175362416).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5318978548944 is a wasteful number, since it uses less digits than its factorization.

5318978548944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23668 (or 23662 counting only the distinct ones).

The product of its digits is 1393459200, while the sum is 75.

The spelling of 5318978548944 in words is "five trillion, three hundred eighteen billion, nine hundred seventy-eight million, five hundred forty-eight thousand, nine hundred forty-four".