3995394717994 has 8 divisors (see below), whose sum is σ = 6308517975840. Its totient is φ = 1892555392716.

The previous prime is 3995394717991. The next prime is 3995394718001. The reversal of 3995394717994 is 4997174935993.

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

It is not an unprimeable number, because it can be changed into a prime (3995394717991) 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, 52570983094 + ... + 52570983169.

It is an arithmetic number, because the mean of its divisors is an integer number (788564746980).

Almost surely, 2^{3995394717994} is an apocalyptic number.

3995394717994 is a deficient number, since it is larger than the sum of its proper divisors (2313123257846).

3995394717994 is a wasteful number, since it uses less digits than its factorization.

3995394717994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105141966284.

The product of its digits is 2083248720, while the sum is 79.

The spelling of 3995394717994 in words is "three trillion, nine hundred ninety-five billion, three hundred ninety-four million, seven hundred seventeen thousand, nine hundred ninety-four".