20140432489 has 2 divisors, whose sum is σ = 20140432490. Its totient is φ = 20140432488.

The previous prime is 20140432441. The next prime is 20140432531. The reversal of 20140432489 is 98423404102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10339432489 + 9801000000 = 101683^2 + 99000^2 .

It is a cyclic number.

It is not a de Polignac number, because 20140432489 - 2¹¹ = 20140430441 is a prime.

It is not a weakly prime, because it can be changed into another prime (20140432789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10070216244 + 10070216245.

It is an arithmetic number, because the mean of its divisors is an integer number (10070216245).

Almost surely, 2^20140432489 is an apocalyptic number.

It is an amenable number.

20140432489 is a deficient number, since it is larger than the sum of its proper divisors (1).

20140432489 is an equidigital number, since it uses as much as digits as its factorization.

20140432489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55296, while the sum is 37.

The spelling of 20140432489 in words is "twenty billion, one hundred forty million, four hundred thirty-two thousand, four hundred eighty-nine".