20250784106243 has 4 divisors (see below), whose sum is σ = 20262028296888. Its totient is φ = 20239539915600.

The previous prime is 20250784106237. The next prime is 20250784106249. The reversal of 20250784106243 is 34260148705202.

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

It is an interprime number because it is at equal distance from previous prime (20250784106237) and next prime (20250784106249).

It is a cyclic number.

It is not a de Polignac number, because 20250784106243 - 2¹⁸ = 20250783844099 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20250784106194 and 20250784106203.

It is not an unprimeable number, because it can be changed into a prime (20250784106249) 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, 5622092621 + ... + 5622096222.

It is an arithmetic number, because the mean of its divisors is an integer number (5065507074222).

Almost surely, 2^{20250784106243} is an apocalyptic number.

20250784106243 is a deficient number, since it is larger than the sum of its proper divisors (11244190645).

20250784106243 is a wasteful number, since it uses less digits than its factorization.

20250784106243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11244190644.

The product of its (nonzero) digits is 645120, while the sum is 44.

The spelling of 20250784106243 in words is "twenty trillion, two hundred fifty billion, seven hundred eighty-four million, one hundred six thousand, two hundred forty-three".