51077247317 has 2 divisors, whose sum is σ = 51077247318. Its totient is φ = 51077247316.

The previous prime is 51077247311. The next prime is 51077247341. The reversal of 51077247317 is 71374277015.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33747894436 + 17329352881 = 183706^2 + 131641^2 .

It is a cyclic number.

It is not a de Polignac number, because 51077247317 - 2²⁴ = 51060470101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51077247311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25538623658 + 25538623659.

It is an arithmetic number, because the mean of its divisors is an integer number (25538623659).

Almost surely, 2^51077247317 is an apocalyptic number.

It is an amenable number.

51077247317 is a deficient number, since it is larger than the sum of its proper divisors (1).

51077247317 is an equidigital number, since it uses as much as digits as its factorization.

51077247317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288120, while the sum is 44.

The spelling of 51077247317 in words is "fifty-one billion, seventy-seven million, two hundred forty-seven thousand, three hundred seventeen".