50043540389 has 2 divisors, whose sum is σ = 50043540390. Its totient is φ = 50043540388.

The previous prime is 50043540353. The next prime is 50043540427. The reversal of 50043540389 is 98304534005.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49668808225 + 374732164 = 222865^2 + 19358^2 .

It is a cyclic number.

It is not a de Polignac number, because 50043540389 - 2²⁴ = 50026763173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50043540289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25021770194 + 25021770195.

It is an arithmetic number, because the mean of its divisors is an integer number (25021770195).

Almost surely, 2^50043540389 is an apocalyptic number.

It is an amenable number.

50043540389 is a deficient number, since it is larger than the sum of its proper divisors (1).

50043540389 is an equidigital number, since it uses as much as digits as its factorization.

50043540389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 259200, while the sum is 41.

The spelling of 50043540389 in words is "fifty billion, forty-three million, five hundred forty thousand, three hundred eighty-nine".