6620095439 has 2 divisors, whose sum is σ = 6620095440. Its totient is φ = 6620095438.

The previous prime is 6620095393. The next prime is 6620095499. The reversal of 6620095439 is 9345900266.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6620095439 - 2¹² = 6620091343 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6620095439.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6620095499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3310047719 + 3310047720.

It is an arithmetic number, because the mean of its divisors is an integer number (3310047720).

Almost surely, 2^6620095439 is an apocalyptic number.

6620095439 is a deficient number, since it is larger than the sum of its proper divisors (1).

6620095439 is an equidigital number, since it uses as much as digits as its factorization.

6620095439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 349920, while the sum is 44.

The square root of 6620095439 is about 81363.9689235966. The cubic root of 6620095439 is about 1877.6792926899.

The spelling of 6620095439 in words is "six billion, six hundred twenty million, ninety-five thousand, four hundred thirty-nine".