2889452261 has 2 divisors, whose sum is σ = 2889452262. Its totient is φ = 2889452260.

The previous prime is 2889452239. The next prime is 2889452273. The reversal of 2889452261 is 1622549882.

2889452261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2460755236 + 428697025 = 49606^2 + 20705^2 .

It is a cyclic number.

It is not a de Polignac number, because 2889452261 - 2¹⁰ = 2889451237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2889452221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1444726130 + 1444726131.

It is an arithmetic number, because the mean of its divisors is an integer number (1444726131).

Almost surely, 2^2889452261 is an apocalyptic number.

It is an amenable number.

2889452261 is a deficient number, since it is larger than the sum of its proper divisors (1).

2889452261 is an equidigital number, since it uses as much as digits as its factorization.

2889452261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 552960, while the sum is 47.

The square root of 2889452261 is about 53753.6255614447. The cubic root of 2889452261 is about 1424.3121351924.

It can be divided in two parts, 288 and 9452261, that added together give a palindrome (9452549).

The spelling of 2889452261 in words is "two billion, eight hundred eighty-nine million, four hundred fifty-two thousand, two hundred sixty-one".