87659315369 has 2 divisors, whose sum is σ = 87659315370. Its totient is φ = 87659315368.

The previous prime is 87659315357. The next prime is 87659315407. The reversal of 87659315369 is 96351395678.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82277185600 + 5382129769 = 286840^2 + 73363^2 .

It is a cyclic number.

It is not a de Polignac number, because 87659315369 - 2⁴ = 87659315353 is a prime.

It is a super-2 number, since 2×87659315369² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (87659315309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43829657684 + 43829657685.

It is an arithmetic number, because the mean of its divisors is an integer number (43829657685).

Almost surely, 2^87659315369 is an apocalyptic number.

It is an amenable number.

87659315369 is a deficient number, since it is larger than the sum of its proper divisors (1).

87659315369 is an equidigital number, since it uses as much as digits as its factorization.

87659315369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36741600, while the sum is 62.

The spelling of 87659315369 in words is "eighty-seven billion, six hundred fifty-nine million, three hundred fifteen thousand, three hundred sixty-nine".