51682227677 has 2 divisors, whose sum is σ = 51682227678. Its totient is φ = 51682227676.

The previous prime is 51682227673. The next prime is 51682227689. The reversal of 51682227677 is 77672228615.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49758440356 + 1923787321 = 223066^2 + 43861^2 .

It is a cyclic number.

It is not a de Polignac number, because 51682227677 - 2² = 51682227673 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51682227673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25841113838 + 25841113839.

It is an arithmetic number, because the mean of its divisors is an integer number (25841113839).

Almost surely, 2^51682227677 is an apocalyptic number.

It is an amenable number.

51682227677 is a deficient number, since it is larger than the sum of its proper divisors (1).

51682227677 is an equidigital number, since it uses as much as digits as its factorization.

51682227677 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3951360, while the sum is 53.

The spelling of 51682227677 in words is "fifty-one billion, six hundred eighty-two million, two hundred twenty-seven thousand, six hundred seventy-seven".