227429643939 has 4 divisors (see below), whose sum is σ = 303239525256. Its totient is φ = 151619762624.

The previous prime is 227429643913. The next prime is 227429644003. The reversal of 227429643939 is 939346924722.

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

It is a cyclic number.

It is not a de Polignac number, because 227429643939 - 2³⁷ = 89990690467 is a prime.

It is not an unprimeable number, because it can be changed into a prime (227429643139) 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, 37904940654 + ... + 37904940659.

It is an arithmetic number, because the mean of its divisors is an integer number (75809881314).

Almost surely, 2^227429643939 is an apocalyptic number.

227429643939 is a deficient number, since it is larger than the sum of its proper divisors (75809881317).

227429643939 is an equidigital number, since it uses as much as digits as its factorization.

227429643939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75809881316.

The product of its digits is 35271936, while the sum is 60.

The spelling of 227429643939 in words is "two hundred twenty-seven billion, four hundred twenty-nine million, six hundred forty-three thousand, nine hundred thirty-nine".