512542335469 has 2 divisors, whose sum is σ = 512542335470. Its totient is φ = 512542335468.

The previous prime is 512542335451. The next prime is 512542335523. The reversal of 512542335469 is 964533245215.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 268777959844 + 243764375625 = 518438^2 + 493725^2 .

It is a cyclic number.

It is not a de Polignac number, because 512542335469 - 2¹¹ = 512542333421 is a prime.

It is a super-2 number, since 2×512542335469² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (512542335419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256271167734 + 256271167735.

It is an arithmetic number, because the mean of its divisors is an integer number (256271167735).

Almost surely, 2^512542335469 is an apocalyptic number.

It is an amenable number.

512542335469 is a deficient number, since it is larger than the sum of its proper divisors (1).

512542335469 is an equidigital number, since it uses as much as digits as its factorization.

512542335469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888000, while the sum is 49.

The spelling of 512542335469 in words is "five hundred twelve billion, five hundred forty-two million, three hundred thirty-five thousand, four hundred sixty-nine".