512011025263609 has 2 divisors, whose sum is σ = 512011025263610. Its totient is φ = 512011025263608.

The previous prime is 512011025263589. The next prime is 512011025263693. The reversal of 512011025263609 is 906362520110215.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 509735739619584 + 2275285644025 = 22577328^2 + 1508405^2 .

It is a cyclic number.

It is not a de Polignac number, because 512011025263609 - 2¹⁹ = 512011024739321 is a prime.

It is not a weakly prime, because it can be changed into another prime (512011025263009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256005512631804 + 256005512631805.

It is an arithmetic number, because the mean of its divisors is an integer number (256005512631805).

Almost surely, 2^{512011025263609} is an apocalyptic number.

It is an amenable number.

512011025263609 is a deficient number, since it is larger than the sum of its proper divisors (1).

512011025263609 is an equidigital number, since it uses as much as digits as its factorization.

512011025263609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 194400, while the sum is 43.

The spelling of 512011025263609 in words is "five hundred twelve trillion, eleven billion, twenty-five million, two hundred sixty-three thousand, six hundred nine".