21442975708088 has 64 divisors (see below), whose sum is σ = 46741395409920. Its totient is φ = 9124670473600.

The previous prime is 21442975708061. The next prime is 21442975708117. The reversal of 21442975708088 is 88080757924412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112610783 + ... + 112801038.

It is an arithmetic number, because the mean of its divisors is an integer number (730334303280).

Almost surely, 2^{21442975708088} is an apocalyptic number.

It is an amenable number.

21442975708088 is an abundant number, since it is smaller than the sum of its proper divisors (25298419701832).

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

21442975708088 is a wasteful number, since it uses less digits than its factorization.

21442975708088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225411908 (or 225411904 counting only the distinct ones).

The product of its (nonzero) digits is 72253440, while the sum is 65.

The spelling of 21442975708088 in words is "twenty-one trillion, four hundred forty-two billion, nine hundred seventy-five million, seven hundred eight thousand, eighty-eight".