5118085365681 has 8 divisors (see below), whose sum is σ = 6832113957760. Its totient is φ = 3408056842032.

The previous prime is 5118085365667. The next prime is 5118085365733. The reversal of 5118085365681 is 1865635808115.

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

It is a de Polignac number, because none of the positive numbers 2^k-5118085365681 is a prime.

It is a super-2 number, since 2×5118085365681² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5118085365181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1000014121 + ... + 1000019238.

It is an arithmetic number, because the mean of its divisors is an integer number (854014244720).

Almost surely, 2^{5118085365681} is an apocalyptic number.

It is an amenable number.

5118085365681 is a deficient number, since it is larger than the sum of its proper divisors (1714028592079).

5118085365681 is a wasteful number, since it uses less digits than its factorization.

5118085365681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2000034215.

The product of its (nonzero) digits is 6912000, while the sum is 57.

The spelling of 5118085365681 in words is "five trillion, one hundred eighteen billion, eighty-five million, three hundred sixty-five thousand, six hundred eighty-one".