8761661678 has 48 divisors (see below), whose sum is σ = 16951580208. Its totient is φ = 3357648000.

The previous prime is 8761661669. The next prime is 8761661717.

8761661678 is nontrivially palindromic in base 10.

8761661678 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 863 + ... + 132378.

It is an arithmetic number, because the mean of its divisors is an integer number (353157921).

Almost surely, 2^8761661678 is an apocalyptic number.

8761661678 is a deficient number, since it is larger than the sum of its proper divisors (8189918530).

8761661678 is a wasteful number, since it uses less digits than its factorization.

8761661678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133329 (or 133322 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 56.

The square root of 8761661678 is about 93603.7482048662. The cubic root of 8761661678 is about 2061.5576930767.

The spelling of 8761661678 in words is "eight billion, seven hundred sixty-one million, six hundred sixty-one thousand, six hundred seventy-eight".