87665631468 has 12 divisors (see below), whose sum is σ = 204553140120. Its totient is φ = 29221877152.

The previous prime is 87665631437. The next prime is 87665631481. The reversal of 87665631468 is 86413656678.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

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, 3652734633 + ... + 3652734656.

It is an arithmetic number, because the mean of its divisors is an integer number (17046095010).

Almost surely, 2^87665631468 is an apocalyptic number.

It is an amenable number.

87665631468 is an abundant number, since it is smaller than the sum of its proper divisors (116887508652).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87665631468 is a wasteful number, since it uses less digits than its factorization.

87665631468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7305469296 (or 7305469294 counting only the distinct ones).

The product of its digits is 34836480, while the sum is 60.

The spelling of 87665631468 in words is "eighty-seven billion, six hundred sixty-five million, six hundred thirty-one thousand, four hundred sixty-eight".