20036426444413 has 4 divisors (see below), whose sum is σ = 20036492538588. Its totient is φ = 20036360350240.

The previous prime is 20036426444381. The next prime is 20036426444429. The reversal of 20036426444413 is 31444462463002.

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 15349885559449 + 4686540884964 = 3917893^2 + 2164842^2 .

It is a cyclic number.

It is not a de Polignac number, because 20036426444413 - 2⁵ = 20036426444381 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 20036426444413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20036420444413) 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, 32590258 + ... + 33199363.

It is an arithmetic number, because the mean of its divisors is an integer number (5009123134647).

Almost surely, 2^{20036426444413} is an apocalyptic number.

It is an amenable number.

20036426444413 is a deficient number, since it is larger than the sum of its proper divisors (66094175).

20036426444413 is an equidigital number, since it uses as much as digits as its factorization.

20036426444413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66094174.

The product of its (nonzero) digits is 1327104, while the sum is 43.

The spelling of 20036426444413 in words is "twenty trillion, thirty-six billion, four hundred twenty-six million, four hundred forty-four thousand, four hundred thirteen".