42877021359577 has 2 divisors, whose sum is σ = 42877021359578. Its totient is φ = 42877021359576.

The previous prime is 42877021359449. The next prime is 42877021359643. The reversal of 42877021359577 is 77595312077824.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35547542654976 + 7329478704601 = 5962176^2 + 2707301^2 .

It is a cyclic number.

It is not a de Polignac number, because 42877021359577 - 2⁷ = 42877021359449 is a prime.

It is not a weakly prime, because it can be changed into another prime (42877021359677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21438510679788 + 21438510679789.

It is an arithmetic number, because the mean of its divisors is an integer number (21438510679789).

Almost surely, 2^{42877021359577} is an apocalyptic number.

It is an amenable number.

42877021359577 is a deficient number, since it is larger than the sum of its proper divisors (1).

42877021359577 is an equidigital number, since it uses as much as digits as its factorization.

42877021359577 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 207446400, while the sum is 67.

The spelling of 42877021359577 in words is "forty-two trillion, eight hundred seventy-seven billion, twenty-one million, three hundred fifty-nine thousand, five hundred seventy-seven".