226904644261 has 4 divisors (see below), whose sum is σ = 233037202252. Its totient is φ = 220772086272.

The previous prime is 226904644229. The next prime is 226904644313. The reversal of 226904644261 is 162446409622.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 142619522500 + 84285121761 = 377650^2 + 290319^2 .

It is a cyclic number.

It is not a de Polignac number, because 226904644261 - 2⁵ = 226904644229 is a prime.

It is a super-2 number, since 2×226904644261² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226904644201) 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 3 ways as a sum of consecutive naturals, for example, 3066278940 + ... + 3066279013.

It is an arithmetic number, because the mean of its divisors is an integer number (58259300563).

Almost surely, 2^226904644261 is an apocalyptic number.

It is an amenable number.

226904644261 is a deficient number, since it is larger than the sum of its proper divisors (6132557991).

226904644261 is an equidigital number, since it uses as much as digits as its factorization.

226904644261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6132557990.

The product of its (nonzero) digits is 995328, while the sum is 46.

The spelling of 226904644261 in words is "two hundred twenty-six billion, nine hundred four million, six hundred forty-four thousand, two hundred sixty-one".