511149247673 has 2 divisors, whose sum is σ = 511149247674. Its totient is φ = 511149247672.

The previous prime is 511149247669. The next prime is 511149247769. The reversal of 511149247673 is 376742941115.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 299836190329 + 211313057344 = 547573^2 + 459688^2 .

It is a cyclic number.

It is not a de Polignac number, because 511149247673 - 2² = 511149247669 is a prime.

It is a super-2 number, since 2×511149247673² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (511149247633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255574623836 + 255574623837.

It is an arithmetic number, because the mean of its divisors is an integer number (255574623837).

Almost surely, 2^511149247673 is an apocalyptic number.

It is an amenable number.

511149247673 is a deficient number, since it is larger than the sum of its proper divisors (1).

511149247673 is an equidigital number, since it uses as much as digits as its factorization.

511149247673 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1270080, while the sum is 50.

The spelling of 511149247673 in words is "five hundred eleven billion, one hundred forty-nine million, two hundred forty-seven thousand, six hundred seventy-three".