226721777349 has 8 divisors (see below), whose sum is σ = 302436773632. Its totient is φ = 151077316320.

The previous prime is 226721777333. The next prime is 226721777377. The reversal of 226721777349 is 943777127622.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 226721777349 - 2⁴ = 226721777333 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226721773349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17626312 + ... + 17639169.

It is an arithmetic number, because the mean of its divisors is an integer number (37804596704).

Almost surely, 2^226721777349 is an apocalyptic number.

It is an amenable number.

226721777349 is a deficient number, since it is larger than the sum of its proper divisors (75714996283).

226721777349 is a wasteful number, since it uses less digits than its factorization.

226721777349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35267627.

The product of its digits is 12446784, while the sum is 57.

The spelling of 226721777349 in words is "two hundred twenty-six billion, seven hundred twenty-one million, seven hundred seventy-seven thousand, three hundred forty-nine".