6591919093 has 2 divisors, whose sum is σ = 6591919094. Its totient is φ = 6591919092.

The previous prime is 6591919063. The next prime is 6591919111. The reversal of 6591919093 is 3909191956.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5926382289 + 665536804 = 76983^2 + 25798^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6591919093 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6591919093.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6591919003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3295959546 + 3295959547.

It is an arithmetic number, because the mean of its divisors is an integer number (3295959547).

Almost surely, 2^6591919093 is an apocalyptic number.

It is an amenable number.

6591919093 is a deficient number, since it is larger than the sum of its proper divisors (1).

6591919093 is an equidigital number, since it uses as much as digits as its factorization.

6591919093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 590490, while the sum is 52.

The square root of 6591919093 is about 81190.6342689845. The cubic root of 6591919093 is about 1875.0115880054.

The spelling of 6591919093 in words is "six billion, five hundred ninety-one million, nine hundred nineteen thousand, ninety-three".