42877396939567 has 2 divisors, whose sum is σ = 42877396939568. Its totient is φ = 42877396939566.

The previous prime is 42877396939513. The next prime is 42877396939589. The reversal of 42877396939567 is 76593969377824.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42877396939567 - 2⁴³ = 34081303917359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42877396939067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21438698469783 + 21438698469784.

It is an arithmetic number, because the mean of its divisors is an integer number (21438698469784).

Almost surely, 2^{42877396939567} is an apocalyptic number.

42877396939567 is a deficient number, since it is larger than the sum of its proper divisors (1).

42877396939567 is an equidigital number, since it uses as much as digits as its factorization.

42877396939567 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25924872960, while the sum is 85.

The spelling of 42877396939567 in words is "forty-two trillion, eight hundred seventy-seven billion, three hundred ninety-six million, nine hundred thirty-nine thousand, five hundred sixty-seven".