227227656397 has 4 divisors (see below), whose sum is σ = 259688750176. Its totient is φ = 194766562620.

The previous prime is 227227656371. The next prime is 227227656413. The reversal of 227227656397 is 793656722722.

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 not a de Polignac number, because 227227656397 - 2¹⁹ = 227227132109 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 (227227656197) 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, 16230546879 + ... + 16230546892.

It is an arithmetic number, because the mean of its divisors is an integer number (64922187544).

Almost surely, 2^227227656397 is an apocalyptic number.

It is an amenable number.

227227656397 is a deficient number, since it is larger than the sum of its proper divisors (32461093779).

227227656397 is an equidigital number, since it uses as much as digits as its factorization.

227227656397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32461093778.

The product of its digits is 26671680, while the sum is 58.

The spelling of 227227656397 in words is "two hundred twenty-seven billion, two hundred twenty-seven million, six hundred fifty-six thousand, three hundred ninety-seven".