8601991379 has 2 divisors, whose sum is σ = 8601991380. Its totient is φ = 8601991378.

The previous prime is 8601991357. The next prime is 8601991403. The reversal of 8601991379 is 9731991068.

8601991379 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8601991379 - 2³² = 4307024083 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8601991379.

It is not a weakly prime, because it can be changed into another prime (8601991679) 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 as a sum of consecutive naturals, namely, 4300995689 + 4300995690.

It is an arithmetic number, because the mean of its divisors is an integer number (4300995690).

Almost surely, 2^8601991379 is an apocalyptic number.

8601991379 is a deficient number, since it is larger than the sum of its proper divisors (1).

8601991379 is an equidigital number, since it uses as much as digits as its factorization.

8601991379 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 734832, while the sum is 53.

The square root of 8601991379 is about 92746.9211294909. The cubic root of 8601991379 is about 2048.9577393887.

The spelling of 8601991379 in words is "eight billion, six hundred one million, nine hundred ninety-one thousand, three hundred seventy-nine".