21484359112 has 8 divisors (see below), whose sum is σ = 40283173350. Its totient is φ = 10742179552.

The previous prime is 21484359109. The next prime is 21484359163. The reversal of 21484359112 is 21195348412.

It can be written as a sum of positive squares in only one way, i.e., 12000326116 + 9484032996 = 109546^2 + 97386^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1342772437 + ... + 1342772452.

Almost surely, 2^21484359112 is an apocalyptic number.

It is an amenable number.

21484359112 is a deficient number, since it is larger than the sum of its proper divisors (18798814238).

21484359112 is a wasteful number, since it uses less digits than its factorization.

21484359112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2685544895 (or 2685544891 counting only the distinct ones).

The product of its digits is 69120, while the sum is 40.

The spelling of 21484359112 in words is "twenty-one billion, four hundred eighty-four million, three hundred fifty-nine thousand, one hundred twelve".