3939097165591 has 8 divisors (see below), whose sum is σ = 4501919157120. Its totient is φ = 3376298630328.

The previous prime is 3939097165589. The next prime is 3939097165639. The reversal of 3939097165591 is 1955617909393.

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 3939097165591 - 2¹ = 3939097165589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3939097165501) 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, 5502721 + ... + 6177226.

It is an arithmetic number, because the mean of its divisors is an integer number (562739894640).

Almost surely, 2^{3939097165591} is an apocalyptic number.

3939097165591 is a deficient number, since it is larger than the sum of its proper divisors (562821991529).

3939097165591 is a wasteful number, since it uses less digits than its factorization.

3939097165591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11728133.

The product of its (nonzero) digits is 62001450, while the sum is 67.

The spelling of 3939097165591 in words is "three trillion, nine hundred thirty-nine billion, ninety-seven million, one hundred sixty-five thousand, five hundred ninety-one".