2805772469 has 2 divisors, whose sum is σ = 2805772470. Its totient is φ = 2805772468.

The previous prime is 2805772457. The next prime is 2805772471. The reversal of 2805772469 is 9642775082.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2423100625 + 382671844 = 49225^2 + 19562^2 .

It is a cyclic number.

It is not a de Polignac number, because 2805772469 - 2¹² = 2805768373 is a prime.

It is a super-2 number, since 2×2805772469² = 15744718295596711922, which contains 22 as substring.

Together with 2805772471, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2805772439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1402886234 + 1402886235.

It is an arithmetic number, because the mean of its divisors is an integer number (1402886235).

Almost surely, 2^2805772469 is an apocalyptic number.

It is an amenable number.

2805772469 is a deficient number, since it is larger than the sum of its proper divisors (1).

2805772469 is an equidigital number, since it uses as much as digits as its factorization.

2805772469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1693440, while the sum is 50.

The square root of 2805772469 is about 52969.5428430339. The cubic root of 2805772469 is about 1410.4276604601.

The spelling of 2805772469 in words is "two billion, eight hundred five million, seven hundred seventy-two thousand, four hundred sixty-nine".