5131724639399 has 2 divisors, whose sum is σ = 5131724639400. Its totient is φ = 5131724639398.

The previous prime is 5131724639387. The next prime is 5131724639423. The reversal of 5131724639399 is 9939364271315.

5131724639399 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5131724639399 - 2²⁸ = 5131456203943 is a prime.

It is a super-2 number, since 2×5131724639399² (a number of 26 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5131724639309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2565862319699 + 2565862319700.

It is an arithmetic number, because the mean of its divisors is an integer number (2565862319700).

Almost surely, 2^{5131724639399} is an apocalyptic number.

5131724639399 is a deficient number, since it is larger than the sum of its proper divisors (1).

5131724639399 is an equidigital number, since it uses as much as digits as its factorization.

5131724639399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 33067440, while the sum is 62.

The spelling of 5131724639399 in words is "five trillion, one hundred thirty-one billion, seven hundred twenty-four million, six hundred thirty-nine thousand, three hundred ninety-nine".