229493128188 has 12 divisors (see below), whose sum is σ = 535483965800. Its totient is φ = 76497709392.

The previous prime is 229493128181. The next prime is 229493128217. The reversal of 229493128188 is 881821394922.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229493128181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9562213663 + ... + 9562213686.

Almost surely, 2^229493128188 is an apocalyptic number.

It is an amenable number.

229493128188 is an abundant number, since it is smaller than the sum of its proper divisors (305990837612).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

229493128188 is a wasteful number, since it uses less digits than its factorization.

229493128188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19124427356 (or 19124427354 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 57.

The spelling of 229493128188 in words is "two hundred twenty-nine billion, four hundred ninety-three million, one hundred twenty-eight thousand, one hundred eighty-eight".