21827305551633 has 8 divisors (see below), whose sum is σ = 30106628347200. Its totient is φ = 14049759895248.

The previous prime is 21827305551587. The next prime is 21827305551637. The reversal of 21827305551633 is 33615550372812.

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

It is not a de Polignac number, because 21827305551633 - 2¹⁴ = 21827305535249 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (21827305551637) 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, 125444284693 + ... + 125444284866.

It is an arithmetic number, because the mean of its divisors is an integer number (3763328543400).

Almost surely, 2^{21827305551633} is an apocalyptic number.

It is an amenable number.

21827305551633 is a deficient number, since it is larger than the sum of its proper divisors (8279322795567).

21827305551633 is a wasteful number, since it uses less digits than its factorization.

21827305551633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250888569591.

The product of its (nonzero) digits is 4536000, while the sum is 51.

The spelling of 21827305551633 in words is "twenty-one trillion, eight hundred twenty-seven billion, three hundred five million, five hundred fifty-one thousand, six hundred thirty-three".