21838383535 has 16 divisors (see below), whose sum is σ = 27156724992. Its totient is φ = 16841318400.

The previous prime is 21838383529. The next prime is 21838383599. The reversal of 21838383535 is 53538383812.

It is not a de Polignac number, because 21838383535 - 2³ = 21838383527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 234276 + ... + 313945.

It is an arithmetic number, because the mean of its divisors is an integer number (1697295312).

Almost surely, 2^21838383535 is an apocalyptic number.

21838383535 is a deficient number, since it is larger than the sum of its proper divisors (5318341457).

21838383535 is a wasteful number, since it uses less digits than its factorization.

21838383535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548514.

The product of its digits is 2073600, while the sum is 49.

The spelling of 21838383535 in words is "twenty-one billion, eight hundred thirty-eight million, three hundred eighty-three thousand, five hundred thirty-five".