4118689729686 has 64 divisors (see below), whose sum is σ = 9537418598400. Its totient is φ = 1161372491136.

The previous prime is 4118689729639. The next prime is 4118689729697. The reversal of 4118689729686 is 6869279868114.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7474860 + ... + 8006928.

It is an arithmetic number, because the mean of its divisors is an integer number (149022165600).

Almost surely, 2^{4118689729686} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4118689729686, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4768709299200).

4118689729686 is an abundant number, since it is smaller than the sum of its proper divisors (5418728868714).

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

4118689729686 is a wasteful number, since it uses less digits than its factorization.

4118689729686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534493.

The product of its digits is 501645312, while the sum is 75.

The spelling of 4118689729686 in words is "four trillion, one hundred eighteen billion, six hundred eighty-nine million, seven hundred twenty-nine thousand, six hundred eighty-six".