398755327489 has 8 divisors (see below), whose sum is σ = 403814284160. Its totient is φ = 393696656496.

The previous prime is 398755327471. The next prime is 398755327493. The reversal of 398755327489 is 984723557893.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 398755327489 - 2⁷ = 398755327361 is a prime.

It is a super-2 number, since 2×398755327489² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (398755327459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5055019 + ... + 5133295.

It is an arithmetic number, because the mean of its divisors is an integer number (50476785520).

Almost surely, 2^398755327489 is an apocalyptic number.

It is an amenable number.

398755327489 is a deficient number, since it is larger than the sum of its proper divisors (5058956671).

398755327489 is an equidigital number, since it uses as much as digits as its factorization.

398755327489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142839.

The product of its digits is 457228800, while the sum is 70.

The spelling of 398755327489 in words is "three hundred ninety-eight billion, seven hundred fifty-five million, three hundred twenty-seven thousand, four hundred eighty-nine".