229517904261 has 16 divisors (see below), whose sum is σ = 306418810880. Its totient is φ = 152814567600.

The previous prime is 229517904257. The next prime is 229517904263. The reversal of 229517904261 is 162409715922.

It is a happy number.

It is not a de Polignac number, because 229517904261 - 2² = 229517904257 is a prime.

It is a super-2 number, since 2×229517904261² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 229517904261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229517904263) 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 15 ways as a sum of consecutive naturals, for example, 11157936 + ... + 11178486.

It is an arithmetic number, because the mean of its divisors is an integer number (19151175680).

Almost surely, 2^229517904261 is an apocalyptic number.

It is an amenable number.

229517904261 is a deficient number, since it is larger than the sum of its proper divisors (76900906619).

229517904261 is a wasteful number, since it uses less digits than its factorization.

229517904261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25176.

The product of its (nonzero) digits is 544320, while the sum is 48.

The spelling of 229517904261 in words is "two hundred twenty-nine billion, five hundred seventeen million, nine hundred four thousand, two hundred sixty-one".