20426068441 has 4 divisors (see below), whose sum is σ = 20760922084. Its totient is φ = 20091214800.

The previous prime is 20426068433. The next prime is 20426068451. The reversal of 20426068441 is 14486062402.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1128691216 + 19297377225 = 33596^2 + 138915^2 .

It is a cyclic number.

It is not a de Polignac number, because 20426068441 - 2³ = 20426068433 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20426068441.

It is not an unprimeable number, because it can be changed into a prime (20426068451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167426730 + ... + 167426851.

It is an arithmetic number, because the mean of its divisors is an integer number (5190230521).

Almost surely, 2^20426068441 is an apocalyptic number.

It is an amenable number.

20426068441 is a deficient number, since it is larger than the sum of its proper divisors (334853643).

20426068441 is an equidigital number, since it uses as much as digits as its factorization.

20426068441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334853642.

The product of its (nonzero) digits is 73728, while the sum is 37.

The spelling of 20426068441 in words is "twenty billion, four hundred twenty-six million, sixty-eight thousand, four hundred forty-one".