8961382558277 has 2 divisors, whose sum is σ = 8961382558278. Its totient is φ = 8961382558276.

The previous prime is 8961382558273. The next prime is 8961382558327. The reversal of 8961382558277 is 7728552831698.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6101448352321 + 2859934205956 = 2470111^2 + 1691134^2 .

It is a cyclic number.

It is not a de Polignac number, because 8961382558277 - 2² = 8961382558273 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8961382558277.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8961382558273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4480691279138 + 4480691279139.

It is an arithmetic number, because the mean of its divisors is an integer number (4480691279139).

Almost surely, 2^{8961382558277} is an apocalyptic number.

It is an amenable number.

8961382558277 is a deficient number, since it is larger than the sum of its proper divisors (1).

8961382558277 is an equidigital number, since it uses as much as digits as its factorization.

8961382558277 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 406425600, while the sum is 71.

The spelling of 8961382558277 in words is "eight trillion, nine hundred sixty-one billion, three hundred eighty-two million, five hundred fifty-eight thousand, two hundred seventy-seven".