5105439797 has 2 divisors, whose sum is σ = 5105439798. Its totient is φ = 5105439796.

The previous prime is 5105439749. The next prime is 5105439803. The reversal of 5105439797 is 7979345015.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4861017841 + 244421956 = 69721^2 + 15634^2 .

It is a cyclic number.

It is not a de Polignac number, because 5105439797 - 2⁶ = 5105439733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5105438797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2552719898 + 2552719899.

It is an arithmetic number, because the mean of its divisors is an integer number (2552719899).

Almost surely, 2^5105439797 is an apocalyptic number.

It is an amenable number.

5105439797 is a deficient number, since it is larger than the sum of its proper divisors (1).

5105439797 is an equidigital number, since it uses as much as digits as its factorization.

5105439797 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1190700, while the sum is 50.

The square root of 5105439797 is about 71452.3603319023. The cubic root of 5105439797 is about 1721.9123984253.

The spelling of 5105439797 in words is "five billion, one hundred five million, four hundred thirty-nine thousand, seven hundred ninety-seven".