5618183261 has 2 divisors, whose sum is σ = 5618183262. Its totient is φ = 5618183260.

The previous prime is 5618183243. The next prime is 5618183303. The reversal of 5618183261 is 1623818165.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4829416036 + 788767225 = 69494^2 + 28085^2 .

It is a cyclic number.

It is not a de Polignac number, because 5618183261 - 2¹⁴ = 5618166877 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5618183231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2809091630 + 2809091631.

It is an arithmetic number, because the mean of its divisors is an integer number (2809091631).

Almost surely, 2^5618183261 is an apocalyptic number.

It is an amenable number.

5618183261 is a deficient number, since it is larger than the sum of its proper divisors (1).

5618183261 is an equidigital number, since it uses as much as digits as its factorization.

5618183261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69120, while the sum is 41.

The square root of 5618183261 is about 74954.5412967086. The cubic root of 5618183261 is about 1777.7279495972.

The spelling of 5618183261 in words is "five billion, six hundred eighteen million, one hundred eighty-three thousand, two hundred sixty-one".