87636130855 has 32 divisors (see below), whose sum is σ = 129466512000. Its totient is φ = 55455916032.

The previous prime is 87636130801. The next prime is 87636130867. The reversal of 87636130855 is 55803163678.

It is a cyclic number.

It is not a de Polignac number, because 87636130855 - 2¹⁹ = 87635606567 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1818511 + ... + 1866079.

It is an arithmetic number, because the mean of its divisors is an integer number (4045828500).

Almost surely, 2^87636130855 is an apocalyptic number.

87636130855 is a deficient number, since it is larger than the sum of its proper divisors (41830381145).

87636130855 is a wasteful number, since it uses less digits than its factorization.

87636130855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51643.

The product of its (nonzero) digits is 3628800, while the sum is 52.

The spelling of 87636130855 in words is "eighty-seven billion, six hundred thirty-six million, one hundred thirty thousand, eight hundred fifty-five".