21341548316 has 24 divisors (see below), whose sum is σ = 40747296240. Its totient is φ = 9699670400.

The previous prime is 21341548309. The next prime is 21341548351. The reversal of 21341548316 is 61384514312.

It is a self number, because there is not a number n which added to its sum of digits gives 21341548316.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 522806 + ... + 562146.

It is an arithmetic number, because the mean of its divisors is an integer number (1697804010).

Almost surely, 2^21341548316 is an apocalyptic number.

It is an amenable number.

21341548316 is a deficient number, since it is larger than the sum of its proper divisors (19405747924).

21341548316 is a wasteful number, since it uses less digits than its factorization.

21341548316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51685 (or 51683 counting only the distinct ones).

The product of its digits is 69120, while the sum is 38.

The spelling of 21341548316 in words is "twenty-one billion, three hundred forty-one million, five hundred forty-eight thousand, three hundred sixteen".