20922789888008 has 32 divisors (see below), whose sum is σ = 41273202884760. Its totient is φ = 9930394667520.

The previous prime is 20922789887947. The next prime is 20922789888023. The reversal of 20922789888008 is 80088898722902.

It can be written as a sum of positive squares in 4 ways, for example, as 11095680916324 + 9827108971684 = 3331018^2 + 3134822^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 862001291 + ... + 862025562.

Almost surely, 2^{20922789888008} is an apocalyptic number.

It is an amenable number.

20922789888008 is a deficient number, since it is larger than the sum of its proper divisors (20350412996752).

20922789888008 is a wasteful number, since it uses less digits than its factorization.

20922789888008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1724026937 (or 1724026933 counting only the distinct ones).

The product of its (nonzero) digits is 148635648, while the sum is 71.

The spelling of 20922789888008 in words is "twenty trillion, nine hundred twenty-two billion, seven hundred eighty-nine million, eight hundred eighty-eight thousand, eight".