51682227727 has 4 divisors (see below), whose sum is σ = 55657783720. Its totient is φ = 47706671736.

The previous prime is 51682227719. The next prime is 51682227757. The reversal of 51682227727 is 72772228615.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51682227727 - 2³ = 51682227719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51682227757) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1987777977 + ... + 1987778002.

It is an arithmetic number, because the mean of its divisors is an integer number (13914445930).

Almost surely, 2^51682227727 is an apocalyptic number.

51682227727 is a deficient number, since it is larger than the sum of its proper divisors (3975555993).

51682227727 is a wasteful number, since it uses less digits than its factorization.

51682227727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3975555992.

The product of its digits is 1317120, while the sum is 49.

The spelling of 51682227727 in words is "fifty-one billion, six hundred eighty-two million, two hundred twenty-seven thousand, seven hundred twenty-seven".