8556380117 has 2 divisors, whose sum is σ = 8556380118. Its totient is φ = 8556380116.

The previous prime is 8556380113. The next prime is 8556380191. The reversal of 8556380117 is 7110836558.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8339525041 + 216855076 = 91321^2 + 14726^2 .

It is a cyclic number.

It is not a de Polignac number, because 8556380117 - 2² = 8556380113 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8556380113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4278190058 + 4278190059.

It is an arithmetic number, because the mean of its divisors is an integer number (4278190059).

Almost surely, 2^8556380117 is an apocalyptic number.

It is an amenable number.

8556380117 is a deficient number, since it is larger than the sum of its proper divisors (1).

8556380117 is an equidigital number, since it uses as much as digits as its factorization.

8556380117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 201600, while the sum is 44.

The square root of 8556380117 is about 92500.7033324612. The cubic root of 8556380117 is about 2045.3298501300.

The spelling of 8556380117 in words is "eight billion, five hundred fifty-six million, three hundred eighty thousand, one hundred seventeen".