229638388326489 has 48 divisors (see below), whose sum is σ = 332574277281792. Its totient is φ = 152689334788224.

The previous prime is 229638388326421. The next prime is 229638388326497. The reversal of 229638388326489 is 984623883836922.

229638388326489 is a `hidden beast` number, since 2 + 2 + 9 + 6 + 3 + 8 + 38 + 83 + 26 + 489 = 666.

It is not a de Polignac number, because 229638388326489 - 2¹⁷ = 229638388195417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (229638388326419) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22752237927 + ... + 22752248019.

It is an arithmetic number, because the mean of its divisors is an integer number (6928630776704).

Almost surely, 2^{229638388326489} is an apocalyptic number.

It is an amenable number.

229638388326489 is a deficient number, since it is larger than the sum of its proper divisors (102935888955303).

229638388326489 is a wasteful number, since it uses less digits than its factorization.

229638388326489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14726 (or 14723 counting only the distinct ones).

The product of its digits is 10319560704, while the sum is 81.

The spelling of 229638388326489 in words is "two hundred twenty-nine trillion, six hundred thirty-eight billion, three hundred eighty-eight million, three hundred twenty-six thousand, four hundred eighty-nine".