87531848837 has 4 divisors (see below), whose sum is σ = 90355456896. Its totient is φ = 84708240780.

The previous prime is 87531848827. The next prime is 87531848839. The reversal of 87531848837 is 73884813578.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 73884813578 = 2 ⋅36942406789.

It is a cyclic number.

It is not a de Polignac number, because 87531848837 - 2⁶ = 87531848773 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 87531848837.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87531848839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1411803983 + ... + 1411804044.

It is an arithmetic number, because the mean of its divisors is an integer number (22588864224).

Almost surely, 2^87531848837 is an apocalyptic number.

It is an amenable number.

87531848837 is a deficient number, since it is larger than the sum of its proper divisors (2823608059).

87531848837 is a wasteful number, since it uses less digits than its factorization.

87531848837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2823608058.

The product of its digits is 36126720, while the sum is 62.

The spelling of 87531848837 in words is "eighty-seven billion, five hundred thirty-one million, eight hundred forty-eight thousand, eight hundred thirty-seven".