7161648391 has 8 divisors (see below), whose sum is σ = 7655294304. Its totient is φ = 6683191680.

The previous prime is 7161648379. The next prime is 7161648407. The reversal of 7161648391 is 1938461617.

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 7161648391 - 2⁹ = 7161647879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7161640391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3796326 + ... + 3798211.

It is an arithmetic number, because the mean of its divisors is an integer number (956911788).

Almost surely, 2^7161648391 is an apocalyptic number.

7161648391 is a deficient number, since it is larger than the sum of its proper divisors (493645913).

7161648391 is a wasteful number, since it uses less digits than its factorization.

7161648391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7594601.

The product of its digits is 217728, while the sum is 46.

The square root of 7161648391 is about 84626.5229759559. The cubic root of 7161648391 is about 1927.5441385310.

The spelling of 7161648391 in words is "seven billion, one hundred sixty-one million, six hundred forty-eight thousand, three hundred ninety-one".