20286813326 has 16 divisors (see below), whose sum is σ = 34195833504. Its totient is φ = 8956051104.

The previous prime is 20286813319. The next prime is 20286813343. The reversal of 20286813326 is 62331868202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16961621 + ... + 16962816.

It is an arithmetic number, because the mean of its divisors is an integer number (2137239594).

Almost surely, 2^20286813326 is an apocalyptic number.

20286813326 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

20286813326 is a deficient number, since it is larger than the sum of its proper divisors (13909020178).

20286813326 is a wasteful number, since it uses less digits than its factorization.

20286813326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33924475.

The product of its (nonzero) digits is 165888, while the sum is 41.

The spelling of 20286813326 in words is "twenty billion, two hundred eighty-six million, eight hundred thirteen thousand, three hundred twenty-six".