6580377889 has 2 divisors, whose sum is σ = 6580377890. Its totient is φ = 6580377888.

The previous prime is 6580377877. The next prime is 6580377953. The reversal of 6580377889 is 9887730856.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6509262400 + 71115489 = 80680^2 + 8433^2 .

It is a cyclic number.

It is not a de Polignac number, because 6580377889 - 2⁵ = 6580377857 is a prime.

It is not a weakly prime, because it can be changed into another prime (6580377829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3290188944 + 3290188945.

It is an arithmetic number, because the mean of its divisors is an integer number (3290188945).

Almost surely, 2^6580377889 is an apocalyptic number.

It is an amenable number.

6580377889 is a deficient number, since it is larger than the sum of its proper divisors (1).

6580377889 is an equidigital number, since it uses as much as digits as its factorization.

6580377889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20321280, while the sum is 61.

The square root of 6580377889 is about 81119.5284071598. The cubic root of 6580377889 is about 1873.9166851730.

The spelling of 6580377889 in words is "six billion, five hundred eighty million, three hundred seventy-seven thousand, eight hundred eighty-nine".