21483417686 has 8 divisors (see below), whose sum is σ = 33921185880. Its totient is φ = 10176355728.

The previous prime is 21483417673. The next prime is 21483417719. The reversal of 21483417686 is 68671438412.

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

It is a super-2 number, since 2×21483417686² (a number of 21 digits) contains 22 as substring.

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, 282676511 + ... + 282676586.

It is an arithmetic number, because the mean of its divisors is an integer number (4240148235).

Almost surely, 2^21483417686 is an apocalyptic number.

21483417686 is a deficient number, since it is larger than the sum of its proper divisors (12437768194).

21483417686 is a wasteful number, since it uses less digits than its factorization.

21483417686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565353118.

The product of its digits is 1548288, while the sum is 50.

The spelling of 21483417686 in words is "twenty-one billion, four hundred eighty-three million, four hundred seventeen thousand, six hundred eighty-six".