5257061246777 has 2 divisors, whose sum is σ = 5257061246778. Its totient is φ = 5257061246776.

The previous prime is 5257061246687. The next prime is 5257061246849. The reversal of 5257061246777 is 7776421607525.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3506570837056 + 1750490409721 = 1872584^2 + 1323061^2 .

It is a cyclic number.

It is not a de Polignac number, because 5257061246777 - 2¹⁶ = 5257061181241 is a prime.

It is not a weakly prime, because it can be changed into another prime (5257061249777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2628530623388 + 2628530623389.

It is an arithmetic number, because the mean of its divisors is an integer number (2628530623389).

Almost surely, 2^{5257061246777} is an apocalyptic number.

It is an amenable number.

5257061246777 is a deficient number, since it is larger than the sum of its proper divisors (1).

5257061246777 is an equidigital number, since it uses as much as digits as its factorization.

5257061246777 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34574400, while the sum is 59.

The spelling of 5257061246777 in words is "five trillion, two hundred fifty-seven billion, sixty-one million, two hundred forty-six thousand, seven hundred seventy-seven".