513449395099 has 2 divisors, whose sum is σ = 513449395100. Its totient is φ = 513449395098.

The previous prime is 513449395093. The next prime is 513449395237. The reversal of 513449395099 is 990593944315.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 513449395099 - 2³¹ = 511301911451 is a prime.

It is not a weakly prime, because it can be changed into another prime (513449395093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256724697549 + 256724697550.

It is an arithmetic number, because the mean of its divisors is an integer number (256724697550).

Almost surely, 2^513449395099 is an apocalyptic number.

513449395099 is a deficient number, since it is larger than the sum of its proper divisors (1).

513449395099 is an equidigital number, since it uses as much as digits as its factorization.

513449395099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23619600, while the sum is 61.

The spelling of 513449395099 in words is "five hundred thirteen billion, four hundred forty-nine million, three hundred ninety-five thousand, ninety-nine".