512201044409 has 2 divisors, whose sum is σ = 512201044410. Its totient is φ = 512201044408.

The previous prime is 512201044393. The next prime is 512201044457. The reversal of 512201044409 is 904440102215.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 375303264400 + 136897780009 = 612620^2 + 369997^2 .

It is a cyclic number.

It is not a de Polignac number, because 512201044409 - 2⁴ = 512201044393 is a prime.

It is not a weakly prime, because it can be changed into another prime (512201044909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256100522204 + 256100522205.

It is an arithmetic number, because the mean of its divisors is an integer number (256100522205).

Almost surely, 2^512201044409 is an apocalyptic number.

It is an amenable number.

512201044409 is a deficient number, since it is larger than the sum of its proper divisors (1).

512201044409 is an equidigital number, since it uses as much as digits as its factorization.

512201044409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 32.

The spelling of 512201044409 in words is "five hundred twelve billion, two hundred one million, forty-four thousand, four hundred nine".