512427337909 has 2 divisors, whose sum is σ = 512427337910. Its totient is φ = 512427337908.

The previous prime is 512427337867. The next prime is 512427337931. The reversal of 512427337909 is 909733724215.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 401318449009 + 111108888900 = 633497^2 + 333330^2 .

It is a cyclic number.

It is not a de Polignac number, because 512427337909 - 2³³ = 503837403317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (512427337969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256213668954 + 256213668955.

It is an arithmetic number, because the mean of its divisors is an integer number (256213668955).

Almost surely, 2^512427337909 is an apocalyptic number.

It is an amenable number.

512427337909 is a deficient number, since it is larger than the sum of its proper divisors (1).

512427337909 is an equidigital number, since it uses as much as digits as its factorization.

512427337909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2857680, while the sum is 52.

The spelling of 512427337909 in words is "five hundred twelve billion, four hundred twenty-seven million, three hundred thirty-seven thousand, nine hundred nine".