87044471088 has 80 divisors (see below), whose sum is σ = 237067326720. Its totient is φ = 27445056768.

The previous prime is 87044471077. The next prime is 87044471099. The reversal of 87044471088 is 88017444078.

It is a Cunningham number, because it is equal to 295033²-1.

It is an interprime number because it is at equal distance from previous prime (87044471077) and next prime (87044471099).

It is a self number, because there is not a number n which added to its sum of digits gives 87044471088.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 516306 + ... + 663822.

It is an arithmetic number, because the mean of its divisors is an integer number (2963341584).

Almost surely, 2^87044471088 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87044471088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118533663360).

87044471088 is an abundant number, since it is smaller than the sum of its proper divisors (150022855632).

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

87044471088 is a wasteful number, since it uses less digits than its factorization.

87044471088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148194 (or 148188 counting only the distinct ones).

The product of its (nonzero) digits is 1605632, while the sum is 51.

The spelling of 87044471088 in words is "eighty-seven billion, forty-four million, four hundred seventy-one thousand, eighty-eight".