6580379081 has 2 divisors, whose sum is σ = 6580379082. Its totient is φ = 6580379080.

The previous prime is 6580379077. The next prime is 6580379101. The reversal of 6580379081 is 1809730856.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5004289081 + 1576090000 = 70741^2 + 39700^2 .

It is a cyclic number.

It is not a de Polignac number, because 6580379081 - 2² = 6580379077 is a prime.

It is a super-2 number, since 2×6580379081² = 86602777699324809122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6580379011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3290189540 + 3290189541.

It is an arithmetic number, because the mean of its divisors is an integer number (3290189541).

Almost surely, 2^6580379081 is an apocalyptic number.

It is an amenable number.

6580379081 is a deficient number, since it is larger than the sum of its proper divisors (1).

6580379081 is an equidigital number, since it uses as much as digits as its factorization.

6580379081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 362880, while the sum is 47.

The square root of 6580379081 is about 81119.5357543422. The cubic root of 6580379081 is about 1873.9167983230.

The spelling of 6580379081 in words is "six billion, five hundred eighty million, three hundred seventy-nine thousand, eighty-one".