5121254521215 has 192 divisors, whose sum is σ = 10362098073600. Its totient is φ = 2291529284352.

The previous prime is 5121254521189. The next prime is 5121254521261.

5121254521215 is a `hidden beast` number, since 5 + 1 + 2 + 125 + 4 + 521 + 2 + 1 + 5 = 666.

5121254521215 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 5121254521215 - 2⁸ = 5121254520959 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5121254521215.

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 191 ways as a sum of consecutive naturals, for example, 3243352296 + ... + 3243353874.

It is an arithmetic number, because the mean of its divisors is an integer number (53969260800).

Almost surely, 2^{5121254521215} is an apocalyptic number.

5121254521215 is an abundant number, since it is smaller than the sum of its proper divisors (5240843552385).

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

5121254521215 is a wasteful number, since it uses less digits than its factorization.

5121254521215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2546 (or 2543 counting only the distinct ones).

The product of its digits is 40000, while the sum is 36.

The spelling of 5121254521215 in words is "five trillion, one hundred twenty-one billion, two hundred fifty-four million, five hundred twenty-one thousand, two hundred fifteen".