51868852017185 has 16 divisors (see below), whose sum is σ = 71136164736000. Its totient is φ = 35566343255616.

The previous prime is 51868852017107. The next prime is 51868852017211. The reversal of 51868852017185 is 58171025886815.

51868852017185 is digitally balanced in base 8, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 51868852017185 - 2¹⁰ = 51868852016161 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16662065 + ... + 19528494.

It is an arithmetic number, because the mean of its divisors is an integer number (4446010296000).

Almost surely, 2^{51868852017185} is an apocalyptic number.

It is an amenable number.

51868852017185 is a deficient number, since it is larger than the sum of its proper divisors (19267312718815).

51868852017185 is a wasteful number, since it uses less digits than its factorization.

51868852017185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36231520.

The product of its (nonzero) digits is 43008000, while the sum is 65.

The spelling of 51868852017185 in words is "fifty-one trillion, eight hundred sixty-eight billion, eight hundred fifty-two million, seventeen thousand, one hundred eighty-five".