425342665489 has 9 divisors (see below), whose sum is σ = 494791676667. Its totient is φ = 364575514464.

The previous prime is 425342665477. The next prime is 425342665507. The reversal of 425342665489 is 984566243524.

The square root of 425342665489 is 652183.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 422717127889 + 2625537600 = 650167^2 + 51240^2 .

It is not a de Polignac number, because 425342665489 - 2⁷ = 425342665361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (425342665409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4518697 + ... + 4611865.

It is an arithmetic number, because the mean of its divisors is an integer number (54976852963).

Almost surely, 2^425342665489 is an apocalyptic number.

425342665489 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

425342665489 is the 652183-rd square number.

425342665489 is the 326092-nd centered octagonal number.

It is an amenable number.

425342665489 is a deficient number, since it is larger than the sum of its proper divisors (69449011178).

425342665489 is an frugal number, since it uses more digits than its factorization.

425342665489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186352 (or 93176 counting only the distinct ones).

The product of its digits is 49766400, while the sum is 58.

The spelling of 425342665489 in words is "four hundred twenty-five billion, three hundred forty-two million, six hundred sixty-five thousand, four hundred eighty-nine".