4809561311 has 2 divisors, whose sum is σ = 4809561312. Its totient is φ = 4809561310.

The previous prime is 4809561283. The next prime is 4809561313. The reversal of 4809561311 is 1131659084.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4809561311 is a prime.

It is a super-3 number, since 3×4809561311³ (a number of 30 digits) contains 333 as substring.

Together with 4809561313, 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 (4809561313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2404780655 + 2404780656.

It is an arithmetic number, because the mean of its divisors is an integer number (2404780656).

Almost surely, 2^4809561311 is an apocalyptic number.

4809561311 is a deficient number, since it is larger than the sum of its proper divisors (1).

4809561311 is an equidigital number, since it uses as much as digits as its factorization.

4809561311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 4809561311 is about 69351.0007930671. Note that the first 3 decimals coincide. The cubic root of 4809561311 is about 1687.9846324632.

It can be divided in two parts, 480956 and 1311, that multiplied together give a triangular number (630533316 = T₃₅₅₁₁).

The spelling of 4809561311 in words is "four billion, eight hundred nine million, five hundred sixty-one thousand, three hundred eleven".