3989613794786 has 4 divisors (see below), whose sum is σ = 5984420692182. Its totient is φ = 1994806897392.

The previous prime is 3989613794773. The next prime is 3989613794807. The reversal of 3989613794786 is 6874973169893.

3989613794786 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3891249390625 + 98364404161 = 1972625^2 + 313631^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3989613794786.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 997403448695 + ... + 997403448698.

Almost surely, 2^{3989613794786} is an apocalyptic number.

3989613794786 is a deficient number, since it is larger than the sum of its proper divisors (1994806897396).

3989613794786 is a wasteful number, since it uses less digits than its factorization.

3989613794786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1994806897395.

The product of its digits is 2962842624, while the sum is 80.

The spelling of 3989613794786 in words is "three trillion, nine hundred eighty-nine billion, six hundred thirteen million, seven hundred ninety-four thousand, seven hundred eighty-six".