87686607587 has 2 divisors, whose sum is σ = 87686607588. Its totient is φ = 87686607586.

The previous prime is 87686607557. The next prime is 87686607629. The reversal of 87686607587 is 78570668678.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87686607587 - 2¹⁰ = 87686606563 is a prime.

It is not a weakly prime, because it can be changed into another prime (87686607557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43843303793 + 43843303794.

It is an arithmetic number, because the mean of its divisors is an integer number (43843303794).

Almost surely, 2^87686607587 is an apocalyptic number.

87686607587 is a deficient number, since it is larger than the sum of its proper divisors (1).

87686607587 is an equidigital number, since it uses as much as digits as its factorization.

87686607587 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 189665280, while the sum is 68.

The spelling of 87686607587 in words is "eighty-seven billion, six hundred eighty-six million, six hundred seven thousand, five hundred eighty-seven".