21824754043 has 8 divisors (see below), whose sum is σ = 22291264512. Its totient is φ = 21358333416.

The previous prime is 21824754031. The next prime is 21824754047. The reversal of 21824754043 is 34045742812.

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 21824754043 - 2¹⁷ = 21824622971 is a prime.

It is a super-3 number, since 3×21824754043³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21824753987 and 21824754005.

It is not an unprimeable number, because it can be changed into a prime (21824754047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 746446 + ... + 775132.

It is an arithmetic number, because the mean of its divisors is an integer number (2786408064).

Almost surely, 2^21824754043 is an apocalyptic number.

21824754043 is a deficient number, since it is larger than the sum of its proper divisors (466510469).

21824754043 is a wasteful number, since it uses less digits than its factorization.

21824754043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44921.

The product of its (nonzero) digits is 215040, while the sum is 40.

The spelling of 21824754043 in words is "twenty-one billion, eight hundred twenty-four million, seven hundred fifty-four thousand, forty-three".