126809236227 has 4 divisors (see below), whose sum is σ = 169078981640. Its totient is φ = 84539490816.

The previous prime is 126809236201. The next prime is 126809236249. The reversal of 126809236227 is 722632908621.

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

It is not a de Polignac number, because 126809236227 - 2⁶ = 126809236163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126809236277) 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, 21134872702 + ... + 21134872707.

It is an arithmetic number, because the mean of its divisors is an integer number (42269745410).

Almost surely, 2^126809236227 is an apocalyptic number.

126809236227 is a deficient number, since it is larger than the sum of its proper divisors (42269745413).

126809236227 is an equidigital number, since it uses as much as digits as its factorization.

126809236227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42269745412.

The product of its (nonzero) digits is 870912, while the sum is 48.

The spelling of 126809236227 in words is "one hundred twenty-six billion, eight hundred nine million, two hundred thirty-six thousand, two hundred twenty-seven".