51336410777 has 2 divisors, whose sum is σ = 51336410778. Its totient is φ = 51336410776.

The previous prime is 51336410767. The next prime is 51336410837. The reversal of 51336410777 is 77701463315.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30360971536 + 20975439241 = 174244^2 + 144829^2 .

It is a cyclic number.

It is not a de Polignac number, because 51336410777 - 2⁴ = 51336410761 is a prime.

It is not a weakly prime, because it can be changed into another prime (51336410717) by changing a digit.

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 as a sum of consecutive naturals, namely, 25668205388 + 25668205389.

It is an arithmetic number, because the mean of its divisors is an integer number (25668205389).

Almost surely, 2^51336410777 is an apocalyptic number.

It is an amenable number.

51336410777 is a deficient number, since it is larger than the sum of its proper divisors (1).

51336410777 is an equidigital number, since it uses as much as digits as its factorization.

51336410777 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 370440, while the sum is 44.

The spelling of 51336410777 in words is "fifty-one billion, three hundred thirty-six million, four hundred ten thousand, seven hundred seventy-seven".