20741743873 has 8 divisors (see below), whose sum is σ = 21658953600. Its totient is φ = 19825817088.

The previous prime is 20741743859. The next prime is 20741743933. The reversal of 20741743873 is 37834714702.

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 20741743873 - 2⁹ = 20741743361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20741744873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 287613 + ... + 352426.

It is an arithmetic number, because the mean of its divisors is an integer number (2707369200).

Almost surely, 2^20741743873 is an apocalyptic number.

20741743873 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

20741743873 is a deficient number, since it is larger than the sum of its proper divisors (917209727).

20741743873 is a wasteful number, since it uses less digits than its factorization.

20741743873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641471.

The product of its (nonzero) digits is 790272, while the sum is 46.

The spelling of 20741743873 in words is "twenty billion, seven hundred forty-one million, seven hundred forty-three thousand, eight hundred seventy-three".