87550866487044 has 27 divisors (see below), whose sum is σ = 221309276643637. Its totient is φ = 29183603448624.

The previous prime is 87550866487031. The next prime is 87550866487061. The reversal of 87550866487044 is 44078466805578.

The square root of 87550866487044 is 9356862.

It is a perfect power (a square), and thus also a powerful number.

87550866487044 is a `hidden beast` number, since 8 + 7 + 5 + 508 + 6 + 6 + 4 + 8 + 70 + 44 = 666.

It can be written as a sum of positive squares in only one way, i.e., 56584846844100 + 30966019642944 = 7522290^2 + 5564712^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 55361434 + ... + 56920910.

Almost surely, 2^{87550866487044} is an apocalyptic number.

87550866487044 is the 9356862-nd square number.

It is an amenable number.

87550866487044 is an abundant number, since it is smaller than the sum of its proper divisors (133758410156593).

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

87550866487044 is an frugal number, since it uses more digits than its factorization.

87550866487044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3118964 (or 1559482 counting only the distinct ones).

The product of its (nonzero) digits is 1445068800, while the sum is 72.

The spelling of 87550866487044 in words is "eighty-seven trillion, five hundred fifty billion, eight hundred sixty-six million, four hundred eighty-seven thousand, forty-four".