20289008873622 has 32 divisors (see below), whose sum is σ = 40964610313440. Its totient is φ = 6698651258880.

The previous prime is 20289008873579. The next prime is 20289008873633. The reversal of 20289008873622 is 22637880098202.

It is a happy number.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9039079 + ... + 11058162.

It is an arithmetic number, because the mean of its divisors is an integer number (1280144072295).

Almost surely, 2^{20289008873622} is an apocalyptic number.

20289008873622 is an abundant number, since it is smaller than the sum of its proper divisors (20675601439818).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20289008873622 is a wasteful number, since it uses less digits than its factorization.

20289008873622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20098848.

The product of its (nonzero) digits is 9289728, while the sum is 57.

The spelling of 20289008873622 in words is "twenty trillion, two hundred eighty-nine billion, eight million, eight hundred seventy-three thousand, six hundred twenty-two".