57662878577 has 2 divisors, whose sum is σ = 57662878578. Its totient is φ = 57662878576.

The previous prime is 57662878531. The next prime is 57662878639. The reversal of 57662878577 is 77587826675.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57097580401 + 565298176 = 238951^2 + 23776^2 .

It is a cyclic number.

It is not a de Polignac number, because 57662878577 - 2⁸ = 57662878321 is a prime.

It is not a weakly prime, because it can be changed into another prime (57662875577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28831439288 + 28831439289.

It is an arithmetic number, because the mean of its divisors is an integer number (28831439289).

Almost surely, 2^57662878577 is an apocalyptic number.

It is an amenable number.

57662878577 is a deficient number, since it is larger than the sum of its proper divisors (1).

57662878577 is an equidigital number, since it uses as much as digits as its factorization.

57662878577 is an evil number, because the sum of its binary digits is even.

The product of its digits is 276595200, while the sum is 68.

The spelling of 57662878577 in words is "fifty-seven billion, six hundred sixty-two million, eight hundred seventy-eight thousand, five hundred seventy-seven".