512011046541389 has 2 divisors, whose sum is σ = 512011046541390. Its totient is φ = 512011046541388.

The previous prime is 512011046541343. The next prime is 512011046541427. The reversal of 512011046541389 is 983145640110215.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 329297567247364 + 182713479294025 = 18146558^2 + 13517155^2 .

It is a cyclic number.

It is not a de Polignac number, because 512011046541389 - 2¹² = 512011046537293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (512011046541989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256005523270694 + 256005523270695.

It is an arithmetic number, because the mean of its divisors is an integer number (256005523270695).

Almost surely, 2^{512011046541389} is an apocalyptic number.

It is an amenable number.

512011046541389 is a deficient number, since it is larger than the sum of its proper divisors (1).

512011046541389 is an equidigital number, since it uses as much as digits as its factorization.

512011046541389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1036800, while the sum is 50.

The spelling of 512011046541389 in words is "five hundred twelve trillion, eleven billion, forty-six million, five hundred forty-one thousand, three hundred eighty-nine".