515623283713 has 2 divisors, whose sum is σ = 515623283714. Its totient is φ = 515623283712.

The previous prime is 515623283687. The next prime is 515623283723. The reversal of 515623283713 is 317382326515.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 423479467009 + 92143816704 = 650753^2 + 303552^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-515623283713 is a prime.

It is not a weakly prime, because it can be changed into another prime (515623283723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 257811641856 + 257811641857.

It is an arithmetic number, because the mean of its divisors is an integer number (257811641857).

Almost surely, 2^515623283713 is an apocalyptic number.

It is an amenable number.

515623283713 is a deficient number, since it is larger than the sum of its proper divisors (1).

515623283713 is an equidigital number, since it uses as much as digits as its factorization.

515623283713 is an evil number, because the sum of its binary digits is even.

The product of its digits is 907200, while the sum is 46.

The spelling of 515623283713 in words is "five hundred fifteen billion, six hundred twenty-three million, two hundred eighty-three thousand, seven hundred thirteen".