86575561901 has 2 divisors, whose sum is σ = 86575561902. Its totient is φ = 86575561900.

The previous prime is 86575561889. The next prime is 86575561909. The reversal of 86575561901 is 10916557568.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46365286276 + 40210275625 = 215326^2 + 200525^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86575561901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86575561909) 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, 43287780950 + 43287780951.

It is an arithmetic number, because the mean of its divisors is an integer number (43287780951).

Almost surely, 2^86575561901 is an apocalyptic number.

It is an amenable number.

86575561901 is a deficient number, since it is larger than the sum of its proper divisors (1).

86575561901 is an equidigital number, since it uses as much as digits as its factorization.

86575561901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268000, while the sum is 53.

The spelling of 86575561901 in words is "eighty-six billion, five hundred seventy-five million, five hundred sixty-one thousand, nine hundred one".