2076805609 has 2 divisors, whose sum is σ = 2076805610. Its totient is φ = 2076805608.

The previous prime is 2076805607. The next prime is 2076805651. The reversal of 2076805609 is 9065086702.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1384063209 + 692742400 = 37203^2 + 26320^2 .

It is a cyclic number.

It is not a de Polignac number, because 2076805609 - 2¹ = 2076805607 is a prime.

Together with 2076805607, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2076805603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1038402804 + 1038402805.

It is an arithmetic number, because the mean of its divisors is an integer number (1038402805).

Almost surely, 2^2076805609 is an apocalyptic number.

It is an amenable number.

2076805609 is a deficient number, since it is larger than the sum of its proper divisors (1).

2076805609 is an equidigital number, since it uses as much as digits as its factorization.

2076805609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 2076805609 is about 45571.9827196491. The cubic root of 2076805609 is about 1275.8470565549.

The spelling of 2076805609 in words is "two billion, seventy-six million, eight hundred five thousand, six hundred nine".