2853871261 has 2 divisors, whose sum is σ = 2853871262. Its totient is φ = 2853871260.

The previous prime is 2853871259. The next prime is 2853871289. The reversal of 2853871261 is 1621783582.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2810060100 + 43811161 = 53010^2 + 6619^2 .

It is a cyclic number.

It is not a de Polignac number, because 2853871261 - 2¹ = 2853871259 is a prime.

Together with 2853871259, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2853871291) 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, 1426935630 + 1426935631.

It is an arithmetic number, because the mean of its divisors is an integer number (1426935631).

Almost surely, 2^2853871261 is an apocalyptic number.

It is an amenable number.

2853871261 is a deficient number, since it is larger than the sum of its proper divisors (1).

2853871261 is an equidigital number, since it uses as much as digits as its factorization.

2853871261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 161280, while the sum is 43.

The square root of 2853871261 is about 53421.6366372278. The cubic root of 2853871261 is about 1418.4415987050.

It can be divided in two parts, 28538 and 71261, that added together give a palindrome (99799).

The spelling of 2853871261 in words is "two billion, eight hundred fifty-three million, eight hundred seventy-one thousand, two hundred sixty-one".