1186420008617 has 2 divisors, whose sum is σ = 1186420008618. Its totient is φ = 1186420008616.

The previous prime is 1186420008601. The next prime is 1186420008661. The reversal of 1186420008617 is 7168000246811.

It is an a-pointer prime, because the next prime (1186420008661) can be obtained adding 1186420008617 to its sum of digits (44).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1159661919376 + 26758089241 = 1076876^2 + 163579^2 .

It is an emirp because it is prime and its reverse (7168000246811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1186420008617 - 2⁴ = 1186420008601 is a prime.

It is a super-3 number, since 3×1186420008617³ (a number of 37 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (1186420008677) 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, 593210004308 + 593210004309.

It is an arithmetic number, because the mean of its divisors is an integer number (593210004309).

Almost surely, 2^{1186420008617} is an apocalyptic number.

It is an amenable number.

1186420008617 is a deficient number, since it is larger than the sum of its proper divisors (1).

1186420008617 is an equidigital number, since it uses as much as digits as its factorization.

1186420008617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129024, while the sum is 44.

The spelling of 1186420008617 in words is "one trillion, one hundred eighty-six billion, four hundred twenty million, eight thousand, six hundred seventeen".