1205424082489 has 16 divisors (see below), whose sum is σ = 1340647153344. Its totient is φ = 1074499732800.

The previous prime is 1205424082483. The next prime is 1205424082493. The reversal of 1205424082489 is 9842804245021.

It is a cyclic number.

It is not a de Polignac number, because 1205424082489 - 2¹⁹ = 1205423558201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1205424082483) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 307282 + ... + 1582804.

It is an arithmetic number, because the mean of its divisors is an integer number (83790447084).

Almost surely, 2^{1205424082489} is an apocalyptic number.

It is an amenable number.

1205424082489 is a deficient number, since it is larger than the sum of its proper divisors (135223070855).

1205424082489 is a wasteful number, since it uses less digits than its factorization.

1205424082489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1277208.

The product of its (nonzero) digits is 1474560, while the sum is 49.

The spelling of 1205424082489 in words is "one trillion, two hundred five billion, four hundred twenty-four million, eighty-two thousand, four hundred eighty-nine".