8642655755329 has 2 divisors, whose sum is σ = 8642655755330. Its totient is φ = 8642655755328.

The previous prime is 8642655755309. The next prime is 8642655755333. The reversal of 8642655755329 is 9235575562468.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6859501474225 + 1783154281104 = 2619065^2 + 1335348^2 .

It is a cyclic number.

It is not a de Polignac number, because 8642655755329 - 2¹³ = 8642655747137 is a prime.

It is a super-3 number, since 3×8642655755329³ (a number of 40 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (8642655755309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4321327877664 + 4321327877665.

It is an arithmetic number, because the mean of its divisors is an integer number (4321327877665).

Almost surely, 2^{8642655755329} is an apocalyptic number.

It is an amenable number.

8642655755329 is a deficient number, since it is larger than the sum of its proper divisors (1).

8642655755329 is an equidigital number, since it uses as much as digits as its factorization.

8642655755329 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 544320000, while the sum is 67.

The spelling of 8642655755329 in words is "eight trillion, six hundred forty-two billion, six hundred fifty-five million, seven hundred fifty-five thousand, three hundred twenty-nine".