8661333873 has 8 divisors (see below), whose sum is σ = 11565972000. Its totient is φ = 5765459168.

The previous prime is 8661333869. The next prime is 8661333887. The reversal of 8661333873 is 3783331668.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8661333873 - 2² = 8661333869 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8661333803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2188548 + ... + 2192501.

It is an arithmetic number, because the mean of its divisors is an integer number (1445746500).

Almost surely, 2^8661333873 is an apocalyptic number.

It is an amenable number.

8661333873 is a deficient number, since it is larger than the sum of its proper divisors (2904638127).

8661333873 is a wasteful number, since it uses less digits than its factorization.

8661333873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4381711.

The product of its digits is 1306368, while the sum is 48.

The square root of 8661333873 is about 93066.2875213146. The cubic root of 8661333873 is about 2053.6586556885.

The spelling of 8661333873 in words is "eight billion, six hundred sixty-one million, three hundred thirty-three thousand, eight hundred seventy-three".