6608991379 has 2 divisors, whose sum is σ = 6608991380. Its totient is φ = 6608991378.

The previous prime is 6608991371. The next prime is 6608991391. The reversal of 6608991379 is 9731998066.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6608991379 - 2³ = 6608991371 is a prime.

It is not a weakly prime, because it can be changed into another prime (6608991371) 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, 3304495689 + 3304495690.

It is an arithmetic number, because the mean of its divisors is an integer number (3304495690).

Almost surely, 2^6608991379 is an apocalyptic number.

6608991379 is a deficient number, since it is larger than the sum of its proper divisors (1).

6608991379 is an equidigital number, since it uses as much as digits as its factorization.

6608991379 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4408992, while the sum is 58.

The square root of 6608991379 is about 81295.7033243455. The cubic root of 6608991379 is about 1876.6288782392.

The spelling of 6608991379 in words is "six billion, six hundred eight million, nine hundred ninety-one thousand, three hundred seventy-nine".