8624217360881 has 2 divisors, whose sum is σ = 8624217360882. Its totient is φ = 8624217360880.

The previous prime is 8624217360839. The next prime is 8624217360883. The reversal of 8624217360881 is 1880637124268.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8289884774656 + 334332586225 = 2879216^2 + 578215^2 .

It is a cyclic number.

It is not a de Polignac number, because 8624217360881 - 2²² = 8624213166577 is a prime.

It is a super-3 number, since 3×8624217360881³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 8624217360883, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (8624217360883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4312108680440 + 4312108680441.

It is an arithmetic number, because the mean of its divisors is an integer number (4312108680441).

Almost surely, 2^{8624217360881} is an apocalyptic number.

It is an amenable number.

8624217360881 is a deficient number, since it is larger than the sum of its proper divisors (1).

8624217360881 is an equidigital number, since it uses as much as digits as its factorization.

8624217360881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6193152, while the sum is 56.

The spelling of 8624217360881 in words is "eight trillion, six hundred twenty-four billion, two hundred seventeen million, three hundred sixty thousand, eight hundred eighty-one".