51086781223706 has 16 divisors (see below), whose sum is σ = 76806162470400. Its totient is φ = 25484729241168.

The previous prime is 51086781223669. The next prime is 51086781223711. The reversal of 51086781223706 is 60732218768015.

51086781223706 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon 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 7 ways as a sum of consecutive naturals, for example, 49073456 + ... + 50103668.

It is an arithmetic number, because the mean of its divisors is an integer number (4800385154400).

Almost surely, 2^{51086781223706} is an apocalyptic number.

51086781223706 is a deficient number, since it is larger than the sum of its proper divisors (25719381246694).

51086781223706 is a wasteful number, since it uses less digits than its factorization.

51086781223706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1087133.

The product of its (nonzero) digits is 6773760, while the sum is 56.

The spelling of 51086781223706 in words is "fifty-one trillion, eighty-six billion, seven hundred eighty-one million, two hundred twenty-three thousand, seven hundred six".