228459608881 has 4 divisors (see below), whose sum is σ = 261096695872. Its totient is φ = 195822521892.

The previous prime is 228459608809. The next prime is 228459609023. The reversal of 228459608881 is 188806954822.

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 228459608881 - 2⁷ = 228459608753 is a prime.

It is a super-4 number, since 4×228459608881⁴ (a number of 47 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228459600881) 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, 16318543485 + ... + 16318543498.

It is an arithmetic number, because the mean of its divisors is an integer number (65274173968).

Almost surely, 2^228459608881 is an apocalyptic number.

It is an amenable number.

228459608881 is a deficient number, since it is larger than the sum of its proper divisors (32637086991).

228459608881 is an equidigital number, since it uses as much as digits as its factorization.

228459608881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32637086990.

The product of its (nonzero) digits is 17694720, while the sum is 61.

The spelling of 228459608881 in words is "two hundred twenty-eight billion, four hundred fifty-nine million, six hundred eight thousand, eight hundred eighty-one".