21736205537241 has 8 divisors (see below), whose sum is σ = 31210961797120. Its totient is φ = 13376126484432.

The previous prime is 21736205537213. The next prime is 21736205537243. The reversal of 21736205537241 is 14273550263712.

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

It is not a de Polignac number, because 21736205537241 - 2³¹ = 21734058053593 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (21736205537243) 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, 278669301721 + ... + 278669301798.

It is an arithmetic number, because the mean of its divisors is an integer number (3901370224640).

Almost surely, 2^{21736205537241} is an apocalyptic number.

It is an amenable number.

21736205537241 is a deficient number, since it is larger than the sum of its proper divisors (9474756259879).

21736205537241 is a wasteful number, since it uses less digits than its factorization.

21736205537241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557338603535.

The product of its (nonzero) digits is 2116800, while the sum is 48.

The spelling of 21736205537241 in words is "twenty-one trillion, seven hundred thirty-six billion, two hundred five million, five hundred thirty-seven thousand, two hundred forty-one".