87556573871 has 16 divisors (see below), whose sum is σ = 95634302400. Its totient is φ = 79677523200.

The previous prime is 87556573861. The next prime is 87556573877. The reversal of 87556573871 is 17837565578.

It is a cyclic number.

It is not a de Polignac number, because 87556573871 - 2²² = 87552379567 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87556573877) 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 in 15 ways as a sum of consecutive naturals, for example, 162830 + ... + 449028.

It is an arithmetic number, because the mean of its divisors is an integer number (5977143900).

Almost surely, 2^87556573871 is an apocalyptic number.

87556573871 is a deficient number, since it is larger than the sum of its proper divisors (8077728529).

87556573871 is a wasteful number, since it uses less digits than its factorization.

87556573871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286546.

The product of its digits is 49392000, while the sum is 62.

The spelling of 87556573871 in words is "eighty-seven billion, five hundred fifty-six million, five hundred seventy-three thousand, eight hundred seventy-one".