3995846642971 has 8 divisors (see below), whose sum is σ = 4032886705200. Its totient is φ = 3958953274848.

The previous prime is 3995846642941. The next prime is 3995846643001. The reversal of 3995846642971 is 1792466485993.

It is an interprime number because it is at equal distance from previous prime (3995846642941) and next prime (3995846643001).

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 3995846642971 - 2¹¹ = 3995846640923 is a prime.

It is a super-2 number, since 2×3995846642971² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3995846642894 and 3995846642903.

It is not an unprimeable number, because it can be changed into a prime (3995846642941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36618796 + ... + 36727753.

It is an arithmetic number, because the mean of its divisors is an integer number (504110838150).

Almost surely, 2^{3995846642971} is an apocalyptic number.

3995846642971 is a deficient number, since it is larger than the sum of its proper divisors (37040062229).

3995846642971 is a wasteful number, since it uses less digits than its factorization.

3995846642971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73347053.

The product of its digits is 705438720, while the sum is 73.

The spelling of 3995846642971 in words is "three trillion, nine hundred ninety-five billion, eight hundred forty-six million, six hundred forty-two thousand, nine hundred seventy-one".