87043526087 has 4 divisors (see below), whose sum is σ = 99478315536. Its totient is φ = 74608736640.

The previous prime is 87043526081. The next prime is 87043526113. The reversal of 87043526087 is 78062534078.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78062534078 = 2 ⋅39031267039.

It is a cyclic number.

It is not a de Polignac number, because 87043526087 - 2⁸ = 87043525831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87043526081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6217394714 + ... + 6217394727.

It is an arithmetic number, because the mean of its divisors is an integer number (24869578884).

Almost surely, 2^87043526087 is an apocalyptic number.

87043526087 is a deficient number, since it is larger than the sum of its proper divisors (12434789449).

87043526087 is a wasteful number, since it uses less digits than its factorization.

87043526087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12434789448.

The product of its (nonzero) digits is 2257920, while the sum is 50.

The spelling of 87043526087 in words is "eighty-seven billion, forty-three million, five hundred twenty-six thousand, eighty-seven".