511462853609 has 2 divisors, whose sum is σ = 511462853610. Its totient is φ = 511462853608.

The previous prime is 511462853597. The next prime is 511462853611. The reversal of 511462853609 is 906358264115.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 511289352025 + 173501584 = 715045^2 + 13172^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-511462853609 is a prime.

It is a super-2 number, since 2×511462853609² (a number of 24 digits) contains 22 as substring.

Together with 511462853611, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (511462853669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255731426804 + 255731426805.

It is an arithmetic number, because the mean of its divisors is an integer number (255731426805).

Almost surely, 2^511462853609 is an apocalyptic number.

It is an amenable number.

511462853609 is a deficient number, since it is larger than the sum of its proper divisors (1).

511462853609 is an equidigital number, since it uses as much as digits as its factorization.

511462853609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1555200, while the sum is 50.

The spelling of 511462853609 in words is "five hundred eleven billion, four hundred sixty-two million, eight hundred fifty-three thousand, six hundred nine".