51873539855 has 8 divisors (see below), whose sum is σ = 63422743392. Its totient is φ = 40715834848.

The previous prime is 51873539821. The next prime is 51873539867. The reversal of 51873539855 is 55893537815.

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 51873539855 - 2⁶ = 51873539791 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51873539794 and 51873539803.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97874339 + ... + 97874868.

It is an arithmetic number, because the mean of its divisors is an integer number (7927842924).

Almost surely, 2^51873539855 is an apocalyptic number.

51873539855 is a deficient number, since it is larger than the sum of its proper divisors (11549203537).

51873539855 is a wasteful number, since it uses less digits than its factorization.

51873539855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195749265.

The product of its digits is 22680000, while the sum is 59.

The spelling of 51873539855 in words is "fifty-one billion, eight hundred seventy-three million, five hundred thirty-nine thousand, eight hundred fifty-five".