3968195869 has 8 divisors (see below), whose sum is σ = 4445939808. Its totient is φ = 3509951760.

The previous prime is 3968195857. The next prime is 3968195873. The reversal of 3968195869 is 9685918693.

It is a happy number.

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 3968195869 - 2¹¹ = 3968193821 is a prime.

It is a super-2 number, since 2×3968195869² = 31493156909497330322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3968195869.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3968195839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4874527 + ... + 4875340.

It is an arithmetic number, because the mean of its divisors is an integer number (555742476).

Almost surely, 2^3968195869 is an apocalyptic number.

It is an amenable number.

3968195869 is a deficient number, since it is larger than the sum of its proper divisors (477743939).

3968195869 is a wasteful number, since it uses less digits than its factorization.

3968195869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9749915.

The product of its digits is 25194240, while the sum is 64.

The square root of 3968195869 is about 62993.6176846512. The cubic root of 3968195869 is about 1583.1826927806.

The spelling of 3968195869 in words is "three billion, nine hundred sixty-eight million, one hundred ninety-five thousand, eight hundred sixty-nine".