515469240029 has 2 divisors, whose sum is σ = 515469240030. Its totient is φ = 515469240028.

The previous prime is 515469239977. The next prime is 515469240037. The reversal of 515469240029 is 920042964515.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 459263736100 + 56205503929 = 677690^2 + 237077^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-515469240029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (515469240329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 257734620014 + 257734620015.

It is an arithmetic number, because the mean of its divisors is an integer number (257734620015).

Almost surely, 2^515469240029 is an apocalyptic number.

It is an amenable number.

515469240029 is a deficient number, since it is larger than the sum of its proper divisors (1).

515469240029 is an equidigital number, since it uses as much as digits as its factorization.

515469240029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 777600, while the sum is 47.

The spelling of 515469240029 in words is "five hundred fifteen billion, four hundred sixty-nine million, two hundred forty thousand, twenty-nine".