512633677217 has 2 divisors, whose sum is σ = 512633677218. Its totient is φ = 512633677216.

The previous prime is 512633677201. The next prime is 512633677267. The reversal of 512633677217 is 712776336215.

It is an a-pointer prime, because the next prime (512633677267) can be obtained adding 512633677217 to its sum of digits (50).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 374637029776 + 137996647441 = 612076^2 + 371479^2 .

It is a cyclic number.

It is not a de Polignac number, because 512633677217 - 2⁴ = 512633677201 is a prime.

It is not a weakly prime, because it can be changed into another prime (512633677267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256316838608 + 256316838609.

It is an arithmetic number, because the mean of its divisors is an integer number (256316838609).

Almost surely, 2^512633677217 is an apocalyptic number.

It is an amenable number.

512633677217 is a deficient number, since it is larger than the sum of its proper divisors (1).

512633677217 is an equidigital number, since it uses as much as digits as its factorization.

512633677217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2222640, while the sum is 50.

The spelling of 512633677217 in words is "five hundred twelve billion, six hundred thirty-three million, six hundred seventy-seven thousand, two hundred seventeen".