2804800261 has 2 divisors, whose sum is σ = 2804800262. Its totient is φ = 2804800260.

The previous prime is 2804800249. The next prime is 2804800277. The reversal of 2804800261 is 1620084082.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2015471236 + 789329025 = 44894^2 + 28095^2 .

It is a cyclic number.

It is not a de Polignac number, because 2804800261 - 2⁹ = 2804799749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2804800561) 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, 1402400130 + 1402400131.

It is an arithmetic number, because the mean of its divisors is an integer number (1402400131).

Almost surely, 2^2804800261 is an apocalyptic number.

It is an amenable number.

2804800261 is a deficient number, since it is larger than the sum of its proper divisors (1).

2804800261 is an equidigital number, since it uses as much as digits as its factorization.

2804800261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 2804800261 is about 52960.3650006304. The cubic root of 2804800261 is about 1410.2647359324.

The spelling of 2804800261 in words is "two billion, eight hundred four million, eight hundred thousand, two hundred sixty-one".