20344458227 has 2 divisors, whose sum is σ = 20344458228. Its totient is φ = 20344458226.

The previous prime is 20344458209. The next prime is 20344458269. The reversal of 20344458227 is 72285444302.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20344458227 is a prime.

It is not a weakly prime, because it can be changed into another prime (20344458287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10172229113 + 10172229114.

It is an arithmetic number, because the mean of its divisors is an integer number (10172229114).

Almost surely, 2^20344458227 is an apocalyptic number.

20344458227 is a deficient number, since it is larger than the sum of its proper divisors (1).

20344458227 is an equidigital number, since it uses as much as digits as its factorization.

20344458227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 430080, while the sum is 41.

The spelling of 20344458227 in words is "twenty billion, three hundred forty-four million, four hundred fifty-eight thousand, two hundred twenty-seven".