5478173391888 has 60 divisors (see below), whose sum is σ = 15705210523548. Its totient is φ = 1781519800320.

The previous prime is 5478173391857. The next prime is 5478173391947. The reversal of 5478173391888 is 8881933718745.

It is a happy number.

5478173391888 is a `hidden beast` number, since 5 + 478 + 1 + 73 + 3 + 9 + 1 + 8 + 88 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 546789260304 + 4931384131584 = 739452^2 + 2220672^2 .

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 463931545 + ... + 463943352.

Almost surely, 2^{5478173391888} is an apocalyptic number.

It is an amenable number.

5478173391888 is an abundant number, since it is smaller than the sum of its proper divisors (10227037131660).

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

5478173391888 is a wasteful number, since it uses less digits than its factorization.

5478173391888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 927874952 (or 927874943 counting only the distinct ones).

The product of its digits is 325140480, while the sum is 72.

The spelling of 5478173391888 in words is "five trillion, four hundred seventy-eight billion, one hundred seventy-three million, three hundred ninety-one thousand, eight hundred eighty-eight".