8723881264 has 40 divisors (see below), whose sum is σ = 19365922208. Its totient is φ = 3729369600.

The previous prime is 8723881139. The next prime is 8723881273. The reversal of 8723881264 is 4621883278.

It is a super-2 number, since 2×8723881264² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53637 + ... + 142564.

Almost surely, 2^8723881264 is an apocalyptic number.

It is an amenable number.

8723881264 is an abundant number, since it is smaller than the sum of its proper divisors (10642040944).

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

8723881264 is a wasteful number, since it uses less digits than its factorization.

8723881264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196613 (or 196607 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 49.

The square root of 8723881264 is about 93401.7198128600. The cubic root of 8723881264 is about 2058.5902680912.

The spelling of 8723881264 in words is "eight billion, seven hundred twenty-three million, eight hundred eighty-one thousand, two hundred sixty-four".