1838293739389 has 2 divisors, whose sum is σ = 1838293739390. Its totient is φ = 1838293739388.

The previous prime is 1838293739371. The next prime is 1838293739419. The reversal of 1838293739389 is 9839373928381.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1022794436889 + 815499302500 = 1011333^2 + 903050^2 .

It is a cyclic number.

It is not a de Polignac number, because 1838293739389 - 2¹⁵ = 1838293706621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1838293739339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 919146869694 + 919146869695.

It is an arithmetic number, because the mean of its divisors is an integer number (919146869695).

Almost surely, 2^{1838293739389} is an apocalyptic number.

It is an amenable number.

1838293739389 is a deficient number, since it is larger than the sum of its proper divisors (1).

1838293739389 is an equidigital number, since it uses as much as digits as its factorization.

1838293739389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 423263232, while the sum is 73.

The spelling of 1838293739389 in words is "one trillion, eight hundred thirty-eight billion, two hundred ninety-three million, seven hundred thirty-nine thousand, three hundred eighty-nine".