3961871593349 has 8 divisors (see below), whose sum is σ = 4195094924160. Its totient is φ = 3728667380416.

The previous prime is 3961871593333. The next prime is 3961871593357. The reversal of 3961871593349 is 9433951781693.

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 3961871593349 - 2⁴ = 3961871593333 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3961871590349) 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, 4351709 + ... + 5182770.

It is an arithmetic number, because the mean of its divisors is an integer number (524386865520).

Almost surely, 2^{3961871593349} is an apocalyptic number.

It is an amenable number.

3961871593349 is a deficient number, since it is larger than the sum of its proper divisors (233223330811).

3961871593349 is a wasteful number, since it uses less digits than its factorization.

3961871593349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9558939.

The product of its digits is 132269760, while the sum is 68.

The spelling of 3961871593349 in words is "three trillion, nine hundred sixty-one billion, eight hundred seventy-one million, five hundred ninety-three thousand, three hundred forty-nine".