51731106750566 has 8 divisors (see below), whose sum is σ = 77596701251160. Its totient is φ = 25865539666848.

The previous prime is 51731106750553. The next prime is 51731106750577. The reversal of 51731106750566 is 66505760113715.

It is a happy number.

51731106750566 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×51731106750566² (a number of 28 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 1206371 + ... + 10242926.

It is an arithmetic number, because the mean of its divisors is an integer number (9699587656395).

Almost surely, 2^{51731106750566} is an apocalyptic number.

51731106750566 is a deficient number, since it is larger than the sum of its proper divisors (25865594500594).

51731106750566 is a wasteful number, since it uses less digits than its factorization.

51731106750566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13708438.

The product of its (nonzero) digits is 3969000, while the sum is 53.

The spelling of 51731106750566 in words is "fifty-one trillion, seven hundred thirty-one billion, one hundred six million, seven hundred fifty thousand, five hundred sixty-six".