51806410855 has 8 divisors (see below), whose sum is σ = 62173286064. Its totient is φ = 41441400000.

The previous prime is 51806410849. The next prime is 51806410891. The reversal of 51806410855 is 55801460815.

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

It is not a de Polignac number, because 51806410855 - 2³ = 51806410847 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 404206 + ... + 516715.

It is an arithmetic number, because the mean of its divisors is an integer number (7771660758).

Almost surely, 2^51806410855 is an apocalyptic number.

51806410855 is a deficient number, since it is larger than the sum of its proper divisors (10366875209).

51806410855 is a wasteful number, since it uses less digits than its factorization.

51806410855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 932177.

The product of its (nonzero) digits is 192000, while the sum is 43.

The spelling of 51806410855 in words is "fifty-one billion, eight hundred six million, four hundred ten thousand, eight hundred fifty-five".