86602970561 has 2 divisors, whose sum is σ = 86602970562. Its totient is φ = 86602970560.

The previous prime is 86602970557. The next prime is 86602970567. The reversal of 86602970561 is 16507920668.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86424240400 + 178730161 = 293980^2 + 13369^2 .

It is a cyclic number.

It is not a de Polignac number, because 86602970561 - 2² = 86602970557 is a prime.

It is not a weakly prime, because it can be changed into another prime (86602970567) 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, 43301485280 + 43301485281.

It is an arithmetic number, because the mean of its divisors is an integer number (43301485281).

Almost surely, 2^86602970561 is an apocalyptic number.

It is an amenable number.

86602970561 is a deficient number, since it is larger than the sum of its proper divisors (1).

86602970561 is an equidigital number, since it uses as much as digits as its factorization.

86602970561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1088640, while the sum is 50.

The spelling of 86602970561 in words is "eighty-six billion, six hundred two million, nine hundred seventy thousand, five hundred sixty-one".