8865756361764 has 135 divisors (see below), whose sum is σ = 23471218557633. Its totient is φ = 2918181722688.

The previous prime is 8865756361757. The next prime is 8865756361799. The reversal of 8865756361764 is 4671636575688.

It is a happy number.

The square root of 8865756361764 is 2977542.

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

8865756361764 is a `hidden beast` number, since 8 + 8 + 6 + 57 + 563 + 6 + 1 + 7 + 6 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 6488584452900 + 2377171908864 = 2547270^2 + 1541808^2 .

It is a junction number, because it is equal to n+sod(n) for n = 8865756361692 and 8865756361701.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 4448446752 + ... + 4448448744.

Almost surely, 2^{8865756361764} is an apocalyptic number.

8865756361764 is the 2977542-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8865756361764

8865756361764 is an abundant number, since it is smaller than the sum of its proper divisors (14605462195869).

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

8865756361764 is an frugal number, since it uses more digits than its factorization.

8865756361764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4168 (or 2081 counting only the distinct ones).

The product of its digits is 1219276800, while the sum is 72.

The spelling of 8865756361764 in words is "eight trillion, eight hundred sixty-five billion, seven hundred fifty-six million, three hundred sixty-one thousand, seven hundred sixty-four".