57756196261 has 2 divisors, whose sum is σ = 57756196262. Its totient is φ = 57756196260.

The previous prime is 57756196237. The next prime is 57756196297. The reversal of 57756196261 is 16269165775.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54344468161 + 3411728100 = 233119^2 + 58410^2 .

It is a cyclic number.

It is not a de Polignac number, because 57756196261 - 2⁷ = 57756196133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57756196361) 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, 28878098130 + 28878098131.

It is an arithmetic number, because the mean of its divisors is an integer number (28878098131).

Almost surely, 2^57756196261 is an apocalyptic number.

It is an amenable number.

57756196261 is a deficient number, since it is larger than the sum of its proper divisors (1).

57756196261 is an equidigital number, since it uses as much as digits as its factorization.

57756196261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4762800, while the sum is 55.

The spelling of 57756196261 in words is "fifty-seven billion, seven hundred fifty-six million, one hundred ninety-six thousand, two hundred sixty-one".