21335482652 has 12 divisors (see below), whose sum is σ = 40731376056. Its totient is φ = 9697946640.

The previous prime is 21335482639. The next prime is 21335482661. The reversal of 21335482652 is 25628453312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 242448623 + ... + 242448710.

It is an arithmetic number, because the mean of its divisors is an integer number (3394281338).

Almost surely, 2^21335482652 is an apocalyptic number.

21335482652 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21335482652 is a deficient number, since it is larger than the sum of its proper divisors (19395893404).

21335482652 is a wasteful number, since it uses less digits than its factorization.

21335482652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484897348 (or 484897346 counting only the distinct ones).

The product of its digits is 345600, while the sum is 41.

The spelling of 21335482652 in words is "twenty-one billion, three hundred thirty-five million, four hundred eighty-two thousand, six hundred fifty-two".