87013819321 has 32 divisors (see below), whose sum is σ = 103753681920. Its totient is φ = 71929166400.

The previous prime is 87013819301. The next prime is 87013819331. The reversal of 87013819321 is 12391831078.

It is not a de Polignac number, because 87013819321 - 2⁵ = 87013819289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87013819301) 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 31 ways as a sum of consecutive naturals, for example, 15054010 + ... + 15059788.

It is an arithmetic number, because the mean of its divisors is an integer number (3242302560).

Almost surely, 2^87013819321 is an apocalyptic number.

It is an amenable number.

87013819321 is a deficient number, since it is larger than the sum of its proper divisors (16739862599).

87013819321 is a wasteful number, since it uses less digits than its factorization.

87013819321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7357.

The product of its (nonzero) digits is 72576, while the sum is 43.

The spelling of 87013819321 in words is "eighty-seven billion, thirteen million, eight hundred nineteen thousand, three hundred twenty-one".