1000434051389 has 2 divisors, whose sum is σ = 1000434051390. Its totient is φ = 1000434051388.

The previous prime is 1000434051299. The next prime is 1000434051557. The reversal of 1000434051389 is 9831504340001.

1000434051389 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 878184523225 + 122249528164 = 937115^2 + 349642^2 .

It is an emirp because it is prime and its reverse (9831504340001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1000434051389 - 2¹⁶ = 1000433985853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1000434051989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500217025694 + 500217025695.

It is an arithmetic number, because the mean of its divisors is an integer number (500217025695).

Almost surely, 2^{1000434051389} is an apocalyptic number.

It is an amenable number.

1000434051389 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000434051389 is an equidigital number, since it uses as much as digits as its factorization.

1000434051389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 38.

The spelling of 1000434051389 in words is "one trillion, four hundred thirty-four million, fifty-one thousand, three hundred eighty-nine".