87830265637 has 2 divisors, whose sum is σ = 87830265638. Its totient is φ = 87830265636.

The previous prime is 87830265599. The next prime is 87830265643. The reversal of 87830265637 is 73656203878.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78027483556 + 9802782081 = 279334^2 + 99009^2 .

It is a cyclic number.

It is not a de Polignac number, because 87830265637 - 2¹⁵ = 87830232869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87830265647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43915132818 + 43915132819.

It is an arithmetic number, because the mean of its divisors is an integer number (43915132819).

Almost surely, 2^87830265637 is an apocalyptic number.

It is an amenable number.

87830265637 is a deficient number, since it is larger than the sum of its proper divisors (1).

87830265637 is an equidigital number, since it uses as much as digits as its factorization.

87830265637 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10160640, while the sum is 55.

The spelling of 87830265637 in words is "eighty-seven billion, eight hundred thirty million, two hundred sixty-five thousand, six hundred thirty-seven".