3684864672866 has 8 divisors (see below), whose sum is σ = 5952473702364. Its totient is φ = 1700706772080.

The previous prime is 3684864672823. The next prime is 3684864672869. The reversal of 3684864672866 is 6682764684863.

It can be written as a sum of positive squares in 2 ways, for example, as 3250358265625 + 434506407241 = 1802875^2 + 659171^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 3684864672793 and 3684864672802.

It is not an unprimeable number, because it can be changed into a prime (3684864672869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70862782145 + ... + 70862782196.

Almost surely, 2^{3684864672866} is an apocalyptic number.

3684864672866 is a deficient number, since it is larger than the sum of its proper divisors (2267609029498).

3684864672866 is a wasteful number, since it uses less digits than its factorization.

3684864672866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141725564356.

The product of its digits is 2675441664, while the sum is 74.

The spelling of 3684864672866 in words is "three trillion, six hundred eighty-four billion, eight hundred sixty-four million, six hundred seventy-two thousand, eight hundred sixty-six".