8678561896 has 8 divisors (see below), whose sum is σ = 16272303570. Its totient is φ = 4339280944.

The previous prime is 8678561887. The next prime is 8678561911. The reversal of 8678561896 is 6981658768.

It can be written as a sum of positive squares in only one way, i.e., 8116208100 + 562353796 = 90090^2 + 23714^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×8678561896² (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 (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 542410111 + ... + 542410126.

Almost surely, 2^8678561896 is an apocalyptic number.

It is an amenable number.

8678561896 is a deficient number, since it is larger than the sum of its proper divisors (7593741674).

8678561896 is a wasteful number, since it uses less digits than its factorization.

8678561896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1084820243 (or 1084820239 counting only the distinct ones).

The product of its digits is 34836480, while the sum is 64.

The square root of 8678561896 is about 93158.7993482097. The cubic root of 8678561896 is about 2055.0193793694.

The spelling of 8678561896 in words is "eight billion, six hundred seventy-eight million, five hundred sixty-one thousand, eight hundred ninety-six".