5121715318928 has 80 divisors (see below), whose sum is σ = 11152511610240. Its totient is φ = 2260844669952.

The previous prime is 5121715318817. The next prime is 5121715318939. The reversal of 5121715318928 is 8298135171215.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 5121715318928.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47829575 + ... + 47936537.

It is an arithmetic number, because the mean of its divisors is an integer number (139406395128).

Almost surely, 2^{5121715318928} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5121715318928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5576255805120).

5121715318928 is an abundant number, since it is smaller than the sum of its proper divisors (6030796291312).

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

5121715318928 is a wasteful number, since it uses less digits than its factorization.

5121715318928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117016 (or 117010 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 53.

The spelling of 5121715318928 in words is "five trillion, one hundred twenty-one billion, seven hundred fifteen million, three hundred eighteen thousand, nine hundred twenty-eight".