2012429989 has 2 divisors, whose sum is σ = 2012429990. Its totient is φ = 2012429988.

The previous prime is 2012429987. The next prime is 2012430041. The reversal of 2012429989 is 9899242102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1867709089 + 144720900 = 43217^2 + 12030^2 .

It is a cyclic number.

It is not a de Polignac number, because 2012429989 - 2¹ = 2012429987 is a prime.

Together with 2012429987, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2012429987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006214994 + 1006214995.

It is an arithmetic number, because the mean of its divisors is an integer number (1006214995).

Almost surely, 2^2012429989 is an apocalyptic number.

It is an amenable number.

2012429989 is a deficient number, since it is larger than the sum of its proper divisors (1).

2012429989 is an equidigital number, since it uses as much as digits as its factorization.

2012429989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 186624, while the sum is 46.

The square root of 2012429989 is about 44860.1157934306. The cubic root of 2012429989 is about 1262.5257952969.

The spelling of 2012429989 in words is "two billion, twelve million, four hundred twenty-nine thousand, nine hundred eighty-nine".