8664864885 has 12 divisors (see below), whose sum is σ = 15019099212. Its totient is φ = 4621261248.

The previous prime is 8664864877. The next prime is 8664864919. The reversal of 8664864885 is 5884684668.

It can be written as a sum of positive squares in 2 ways, for example, as 6084936036 + 2579928849 = 78006^2 + 50793^2 .

It is not a de Polignac number, because 8664864885 - 2³ = 8664864877 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 96276232 + ... + 96276321.

It is an arithmetic number, because the mean of its divisors is an integer number (1251591601).

Almost surely, 2^8664864885 is an apocalyptic number.

It is an amenable number.

8664864885 is a deficient number, since it is larger than the sum of its proper divisors (6354234327).

8664864885 is a wasteful number, since it uses less digits than its factorization.

8664864885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192552564 (or 192552561 counting only the distinct ones).

The product of its digits is 70778880, while the sum is 63.

The square root of 8664864885 is about 93085.2560022263. The cubic root of 8664864885 is about 2053.9376930850.

The spelling of 8664864885 in words is "eight billion, six hundred sixty-four million, eight hundred sixty-four thousand, eight hundred eighty-five".