50434440989 has 2 divisors, whose sum is σ = 50434440990. Its totient is φ = 50434440988.

The previous prime is 50434440983. The next prime is 50434441007. The reversal of 50434440989 is 98904443405.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50306004100 + 128436889 = 224290^2 + 11333^2 .

It is a cyclic number.

It is not a de Polignac number, because 50434440989 - 2²⁴ = 50417663773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50434440983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25217220494 + 25217220495.

It is an arithmetic number, because the mean of its divisors is an integer number (25217220495).

Almost surely, 2^50434440989 is an apocalyptic number.

It is an amenable number.

50434440989 is a deficient number, since it is larger than the sum of its proper divisors (1).

50434440989 is an equidigital number, since it uses as much as digits as its factorization.

50434440989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2488320, while the sum is 50.

The spelling of 50434440989 in words is "fifty billion, four hundred thirty-four million, four hundred forty thousand, nine hundred eighty-nine".