21802285084 has 12 divisors (see below), whose sum is σ = 38157676200. Its totient is φ = 10900091888.

The previous prime is 21802285081. The next prime is 21802285111. The reversal of 21802285084 is 48058220812.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21802285081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215014 + ... + 299725.

It is an arithmetic number, because the mean of its divisors is an integer number (3179806350).

Almost surely, 2^21802285084 is an apocalyptic number.

It is an amenable number.

21802285084 is a deficient number, since it is larger than the sum of its proper divisors (16355391116).

21802285084 is a wasteful number, since it uses less digits than its factorization.

21802285084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525332 (or 525330 counting only the distinct ones).

The product of its (nonzero) digits is 81920, while the sum is 40.

The spelling of 21802285084 in words is "twenty-one billion, eight hundred two million, two hundred eighty-five thousand, eighty-four".