57027636261797 has 2 divisors, whose sum is σ = 57027636261798. Its totient is φ = 57027636261796.

The previous prime is 57027636261779. The next prime is 57027636261811. The reversal of 57027636261797 is 79716263672075.

Together with previous prime (57027636261779) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55193740704001 + 1833895557796 = 7429249^2 + 1354214^2 .

It is a cyclic number.

It is not a de Polignac number, because 57027636261797 - 2¹⁴ = 57027636245413 is a prime.

It is a super-2 number, since 2×57027636261797² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57027636261097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28513818130898 + 28513818130899.

It is an arithmetic number, because the mean of its divisors is an integer number (28513818130899).

Almost surely, 2^{57027636261797} is an apocalyptic number.

It is an amenable number.

57027636261797 is a deficient number, since it is larger than the sum of its proper divisors (1).

57027636261797 is an equidigital number, since it uses as much as digits as its factorization.

57027636261797 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 280052640, while the sum is 68.

The spelling of 57027636261797 in words is "fifty-seven trillion, twenty-seven billion, six hundred thirty-six million, two hundred sixty-one thousand, seven hundred ninety-seven".