229889085109 has 4 divisors (see below), whose sum is σ = 237304862080. Its totient is φ = 222473308140.

The previous prime is 229889085061. The next prime is 229889085121. The reversal of 229889085109 is 901580988922.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 229889085109 - 2¹⁷ = 229888954037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229889085149) 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, 3707888439 + ... + 3707888500.

It is an arithmetic number, because the mean of its divisors is an integer number (59326215520).

Almost surely, 2^229889085109 is an apocalyptic number.

It is an amenable number.

229889085109 is a deficient number, since it is larger than the sum of its proper divisors (7415776971).

229889085109 is an equidigital number, since it uses as much as digits as its factorization.

229889085109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7415776970.

The product of its (nonzero) digits is 7464960, while the sum is 61.

The spelling of 229889085109 in words is "two hundred twenty-nine billion, eight hundred eighty-nine million, eighty-five thousand, one hundred nine".