21067524348 has 24 divisors (see below), whose sum is σ = 52938907728. Its totient is φ = 6482315136.

The previous prime is 21067524343. The next prime is 21067524403. The reversal of 21067524348 is 84342576012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21067524343) 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, 67523961 + ... + 67524272.

It is an arithmetic number, because the mean of its divisors is an integer number (2205787822).

Almost surely, 2^21067524348 is an apocalyptic number.

It is an amenable number.

21067524348 is an abundant number, since it is smaller than the sum of its proper divisors (31871383380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21067524348 is a wasteful number, since it uses less digits than its factorization.

21067524348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135048253 (or 135048251 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 42.

The spelling of 21067524348 in words is "twenty-one billion, sixty-seven million, five hundred twenty-four thousand, three hundred forty-eight".