423898821249 has 8 divisors (see below), whose sum is σ = 565272119712. Its totient is φ = 282562368480.

The previous prime is 423898821221. The next prime is 423898821253. The reversal of 423898821249 is 942128898324.

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

It is not a de Polignac number, because 423898821249 - 2¹³ = 423898813057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 423898821192 and 423898821201.

It is not an unprimeable number, because it can be changed into a prime (423898821649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9184567 + ... + 9230604.

It is an arithmetic number, because the mean of its divisors is an integer number (70659014964).

Almost surely, 2^423898821249 is an apocalyptic number.

It is an amenable number.

423898821249 is a deficient number, since it is larger than the sum of its proper divisors (141373298463).

423898821249 is a wasteful number, since it uses less digits than its factorization.

423898821249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18422847.

The product of its digits is 15925248, while the sum is 60.

The spelling of 423898821249 in words is "four hundred twenty-three billion, eight hundred ninety-eight million, eight hundred twenty-one thousand, two hundred forty-nine".