21920289874941 has 8 divisors (see below), whose sum is σ = 30946291588224. Its totient is φ = 13753907372480.

The previous prime is 21920289874933. The next prime is 21920289874981. The reversal of 21920289874941 is 14947898202912.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21920289874941 - 2³ = 21920289874933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21920289874981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214904802645 + ... + 214904802746.

It is an arithmetic number, because the mean of its divisors is an integer number (3868286448528).

Almost surely, 2^{21920289874941} is an apocalyptic number.

It is an amenable number.

21920289874941 is a deficient number, since it is larger than the sum of its proper divisors (9026001713283).

21920289874941 is a wasteful number, since it uses less digits than its factorization.

21920289874941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429809605411.

The product of its (nonzero) digits is 41803776, while the sum is 66.

The spelling of 21920289874941 in words is "twenty-one trillion, nine hundred twenty billion, two hundred eighty-nine million, eight hundred seventy-four thousand, nine hundred forty-one".