4427617261 has 2 divisors, whose sum is σ = 4427617262. Its totient is φ = 4427617260.

The previous prime is 4427617223. The next prime is 4427617279. The reversal of 4427617261 is 1627167244.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3032594761 + 1395022500 = 55069^2 + 37350^2 .

It is a cyclic number.

It is not a de Polignac number, because 4427617261 - 2⁷ = 4427617133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4427617211) 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, 2213808630 + 2213808631.

It is an arithmetic number, because the mean of its divisors is an integer number (2213808631).

Almost surely, 2^4427617261 is an apocalyptic number.

It is an amenable number.

4427617261 is a deficient number, since it is larger than the sum of its proper divisors (1).

4427617261 is an equidigital number, since it uses as much as digits as its factorization.

4427617261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 112896, while the sum is 40.

The square root of 4427617261 is about 66540.3431085233. The cubic root of 4427617261 is about 1642.0637885228.

The spelling of 4427617261 in words is "four billion, four hundred twenty-seven million, six hundred seventeen thousand, two hundred sixty-one".