5231643617 has 2 divisors, whose sum is σ = 5231643618. Its totient is φ = 5231643616.

The previous prime is 5231643581. The next prime is 5231643619. The reversal of 5231643617 is 7163461325.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4717079761 + 514563856 = 68681^2 + 22684^2 .

It is a cyclic number.

It is not a de Polignac number, because 5231643617 - 2¹² = 5231639521 is a prime.

Together with 5231643619, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (5231643619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2615821808 + 2615821809.

It is an arithmetic number, because the mean of its divisors is an integer number (2615821809).

Almost surely, 2^5231643617 is an apocalyptic number.

It is an amenable number.

5231643617 is a deficient number, since it is larger than the sum of its proper divisors (1).

5231643617 is an equidigital number, since it uses as much as digits as its factorization.

5231643617 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 38.

The square root of 5231643617 is about 72330.1017350315. The cubic root of 5231643617 is about 1735.9853291859.

The spelling of 5231643617 in words is "five billion, two hundred thirty-one million, six hundred forty-three thousand, six hundred seventeen".