87447754633165 has 16 divisors (see below), whose sum is σ = 105051933500400. Its totient is φ = 69881787482112.

The previous prime is 87447754633163. The next prime is 87447754633171. The reversal of 87447754633165 is 56133645774478.

It can be written as a sum of positive squares in 8 ways, for example, as 31108048896681 + 56339705736484 = 5577459^2 + 7505978^2 .

It is a cyclic number.

It is not a de Polignac number, because 87447754633165 - 2¹ = 87447754633163 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 87447754633094 and 87447754633103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87447754633163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 417169501 + ... + 417379069.

It is an arithmetic number, because the mean of its divisors is an integer number (6565745843775).

Almost surely, 2^{87447754633165} is an apocalyptic number.

It is an amenable number.

87447754633165 is a deficient number, since it is larger than the sum of its proper divisors (17604178867235).

87447754633165 is a wasteful number, since it uses less digits than its factorization.

87447754633165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300336.

The product of its digits is 1422489600, while the sum is 70.

The spelling of 87447754633165 in words is "eighty-seven trillion, four hundred forty-seven billion, seven hundred fifty-four million, six hundred thirty-three thousand, one hundred sixty-five".