21983598433 has 16 divisors (see below), whose sum is σ = 23916536064. Its totient is φ = 20122248960.

The previous prime is 21983598397. The next prime is 21983598449. The reversal of 21983598433 is 33489538912.

It is a cyclic number.

It is not a de Polignac number, because 21983598433 - 2³³ = 13393663841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21983598463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1696248 + ... + 1709158.

It is an arithmetic number, because the mean of its divisors is an integer number (1494783504).

Almost surely, 2^21983598433 is an apocalyptic number.

It is an amenable number.

21983598433 is a deficient number, since it is larger than the sum of its proper divisors (1932937631).

21983598433 is a wasteful number, since it uses less digits than its factorization.

21983598433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15672.

The product of its digits is 5598720, while the sum is 55.

The spelling of 21983598433 in words is "twenty-one billion, nine hundred eighty-three million, five hundred ninety-eight thousand, four hundred thirty-three".