21693093895012 has 12 divisors (see below), whose sum is σ = 39960962438320. Its totient is φ = 10275676055496.

The previous prime is 21693093895009. The next prime is 21693093895013. The reversal of 21693093895012 is 21059839039612.

It is not an unprimeable number, because it can be changed into a prime (21693093895013) 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, 142717722918 + ... + 142717723069.

Almost surely, 2^{21693093895012} is an apocalyptic number.

It is an amenable number.

21693093895012 is a deficient number, since it is larger than the sum of its proper divisors (18267868543308).

21693093895012 is a wasteful number, since it uses less digits than its factorization.

21693093895012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285435446010 (or 285435446008 counting only the distinct ones).

The product of its (nonzero) digits is 6298560, while the sum is 58.

The spelling of 21693093895012 in words is "twenty-one trillion, six hundred ninety-three billion, ninety-three million, eight hundred ninety-five thousand, twelve".