5018668378805 has 8 divisors (see below), whose sum is σ = 6023028597432. Its totient is φ = 4014517007808.

The previous prime is 5018668378783. The next prime is 5018668378853. The reversal of 5018668378805 is 5088738668105.

It can be written as a sum of positive squares in 4 ways, for example, as 1424007849124 + 3594660529681 = 1193318^2 + 1895959^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5018668378805 - 2⁶ = 5018668378741 is a prime.

It is a Duffinian number.

It is a Curzon number.

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 7 ways as a sum of consecutive naturals, for example, 52159034 + ... + 52255163.

It is an arithmetic number, because the mean of its divisors is an integer number (752878574679).

Almost surely, 2^{5018668378805} is an apocalyptic number.

It is an amenable number.

5018668378805 is a deficient number, since it is larger than the sum of its proper divisors (1004360218627).

5018668378805 is a wasteful number, since it uses less digits than its factorization.

5018668378805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104423815.

The product of its (nonzero) digits is 77414400, while the sum is 65.

The spelling of 5018668378805 in words is "five trillion, eighteen billion, six hundred sixty-eight million, three hundred seventy-eight thousand, eight hundred five".