512401556243 has 2 divisors, whose sum is σ = 512401556244. Its totient is φ = 512401556242.

The previous prime is 512401556179. The next prime is 512401556263. The reversal of 512401556243 is 342655104215.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 512401556243 - 2⁶ = 512401556179 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 512401556197 and 512401556206.

It is not a weakly prime, because it can be changed into another prime (512401556263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256200778121 + 256200778122.

It is an arithmetic number, because the mean of its divisors is an integer number (256200778122).

Almost surely, 2^512401556243 is an apocalyptic number.

512401556243 is a deficient number, since it is larger than the sum of its proper divisors (1).

512401556243 is an equidigital number, since it uses as much as digits as its factorization.

512401556243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144000, while the sum is 38.

The spelling of 512401556243 in words is "five hundred twelve billion, four hundred one million, five hundred fifty-six thousand, two hundred forty-three".