7987656341 has 16 divisors (see below), whose sum is σ = 9309302784. Its totient is φ = 6711379584.

The previous prime is 7987656331. The next prime is 7987656349. The reversal of 7987656341 is 1436567897.

It is not a de Polignac number, because 7987656341 - 2¹⁰ = 7987655317 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 (7987656349) 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 15 ways as a sum of consecutive naturals, for example, 433580 + ... + 451626.

It is an arithmetic number, because the mean of its divisors is an integer number (581831424).

Almost surely, 2^7987656341 is an apocalyptic number.

It is an amenable number.

7987656341 is a deficient number, since it is larger than the sum of its proper divisors (1321646443).

7987656341 is a wasteful number, since it uses less digits than its factorization.

7987656341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19300.

The product of its digits is 7620480, while the sum is 56.

The square root of 7987656341 is about 89373.6893106691. The cubic root of 7987656341 is about 1998.9708322477.

The spelling of 7987656341 in words is "seven billion, nine hundred eighty-seven million, six hundred fifty-six thousand, three hundred forty-one".