86922435217 has 2 divisors, whose sum is σ = 86922435218. Its totient is φ = 86922435216.

The previous prime is 86922435211. The next prime is 86922435233. The reversal of 86922435217 is 71253422968.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46231880256 + 40690554961 = 215016^2 + 201719^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86922435217 is a prime.

It is not a weakly prime, because it can be changed into another prime (86922435211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43461217608 + 43461217609.

It is an arithmetic number, because the mean of its divisors is an integer number (43461217609).

Almost surely, 2^86922435217 is an apocalyptic number.

It is an amenable number.

86922435217 is a deficient number, since it is larger than the sum of its proper divisors (1).

86922435217 is an equidigital number, since it uses as much as digits as its factorization.

86922435217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1451520, while the sum is 49.

The spelling of 86922435217 in words is "eighty-six billion, nine hundred twenty-two million, four hundred thirty-five thousand, two hundred seventeen".