4252120312489 has 15 divisors (see below), whose sum is σ = 4960629745373. Its totient is φ = 3644587946748.

The previous prime is 4252120312421. The next prime is 4252120312547. The reversal of 4252120312489 is 9842130212524.

The square root of 4252120312489 is 2062067.

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

It is not a de Polignac number, because 4252120312489 - 2³⁷ = 4114681359017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4252120312189) 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 in 14 ways as a sum of consecutive naturals, for example, 101020242 + ... + 101062324.

Almost surely, 2^{4252120312489} is an apocalyptic number.

4252120312489 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

4252120312489 is the 2062067-th square number.

4252120312489 is the 1031034-th centered octagonal number.

It is an amenable number.

4252120312489 is a deficient number, since it is larger than the sum of its proper divisors (708509432884).

4252120312489 is an frugal number, since it uses more digits than its factorization.

4252120312489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84194 (or 42090 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 43.

The spelling of 4252120312489 in words is "four trillion, two hundred fifty-two billion, one hundred twenty million, three hundred twelve thousand, four hundred eighty-nine".