1489947452129 has 2 divisors, whose sum is σ = 1489947452130. Its totient is φ = 1489947452128.

The previous prime is 1489947452113. The next prime is 1489947452137. The reversal of 1489947452129 is 9212547499841.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1420065472225 + 69881979904 = 1191665^2 + 264352^2 .

It is a cyclic number.

It is not a de Polignac number, because 1489947452129 - 2⁴ = 1489947452113 is a prime.

It is not a weakly prime, because it can be changed into another prime (1489947452159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 744973726064 + 744973726065.

It is an arithmetic number, because the mean of its divisors is an integer number (744973726065).

Almost surely, 2^{1489947452129} is an apocalyptic number.

It is an amenable number.

1489947452129 is a deficient number, since it is larger than the sum of its proper divisors (1).

1489947452129 is an equidigital number, since it uses as much as digits as its factorization.

1489947452129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 52254720, while the sum is 65.

The spelling of 1489947452129 in words is "one trillion, four hundred eighty-nine billion, nine hundred forty-seven million, four hundred fifty-two thousand, one hundred twenty-nine".