21482288268 has 24 divisors (see below), whose sum is σ = 57286102272. Its totient is φ = 6137796624.

The previous prime is 21482288227. The next prime is 21482288281. The reversal of 21482288268 is 86288228412.

It is a super-2 number, since 2×21482288268² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21482288268.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127870680 + ... + 127870847.

It is an arithmetic number, because the mean of its divisors is an integer number (2386920928).

Almost surely, 2^21482288268 is an apocalyptic number.

21482288268 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

21482288268 is an abundant number, since it is smaller than the sum of its proper divisors (35803814004).

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

21482288268 is a wasteful number, since it uses less digits than its factorization.

21482288268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255741541 (or 255741539 counting only the distinct ones).

The product of its digits is 1572864, while the sum is 51.

The spelling of 21482288268 in words is "twenty-one billion, four hundred eighty-two million, two hundred eighty-eight thousand, two hundred sixty-eight".