20226429389 has 2 divisors, whose sum is σ = 20226429390. Its totient is φ = 20226429388.

The previous prime is 20226429373. The next prime is 20226429437. The reversal of 20226429389 is 98392462202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18319622500 + 1906806889 = 135350^2 + 43667^2 .

It is a cyclic number.

It is not a de Polignac number, because 20226429389 - 2⁴ = 20226429373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20226429359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10113214694 + 10113214695.

It is an arithmetic number, because the mean of its divisors is an integer number (10113214695).

Almost surely, 2^20226429389 is an apocalyptic number.

It is an amenable number.

20226429389 is a deficient number, since it is larger than the sum of its proper divisors (1).

20226429389 is an equidigital number, since it uses as much as digits as its factorization.

20226429389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 746496, while the sum is 47.

The spelling of 20226429389 in words is "twenty billion, two hundred twenty-six million, four hundred twenty-nine thousand, three hundred eighty-nine".