86288415509 has 2 divisors, whose sum is σ = 86288415510. Its totient is φ = 86288415508.

The previous prime is 86288415457. The next prime is 86288415517. The reversal of 86288415509 is 90551488268.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49174393009 + 37114022500 = 221753^2 + 192650^2 .

It is a cyclic number.

It is not a de Polignac number, because 86288415509 - 2¹² = 86288411413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86288415559) 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, 43144207754 + 43144207755.

It is an arithmetic number, because the mean of its divisors is an integer number (43144207755).

Almost surely, 2^86288415509 is an apocalyptic number.

It is an amenable number.

86288415509 is a deficient number, since it is larger than the sum of its proper divisors (1).

86288415509 is an equidigital number, since it uses as much as digits as its factorization.

86288415509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5529600, while the sum is 56.

The spelling of 86288415509 in words is "eighty-six billion, two hundred eighty-eight million, four hundred fifteen thousand, five hundred nine".