21466811426 has 8 divisors (see below), whose sum is σ = 32207154384. Its totient is φ = 10731093300.

The previous prime is 21466811419. The next prime is 21466811519. The reversal of 21466811426 is 62411866412.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 1144580 + ... + 1163183.

It is an arithmetic number, because the mean of its divisors is an integer number (4025894298).

Almost surely, 2^21466811426 is an apocalyptic number.

21466811426 is a deficient number, since it is larger than the sum of its proper divisors (10740342958).

21466811426 is a wasteful number, since it uses less digits than its factorization.

21466811426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2312416.

The product of its digits is 110592, while the sum is 41.

The spelling of 21466811426 in words is "twenty-one billion, four hundred sixty-six million, eight hundred eleven thousand, four hundred twenty-six".