21426654112 has 24 divisors (see below), whose sum is σ = 42308920836. Its totient is φ = 10681531392.

The previous prime is 21426654049. The next prime is 21426654143. The reversal of 21426654112 is 21145662412.

It can be written as a sum of positive squares in 2 ways, for example, as 19995091216 + 1431562896 = 141404^2 + 37836^2 .

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, 982663 + ... + 1004230.

Almost surely, 2^21426654112 is an apocalyptic number.

It is an amenable number.

21426654112 is a deficient number, since it is larger than the sum of its proper divisors (20882266724).

21426654112 is a wasteful number, since it uses less digits than its factorization.

21426654112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1987240 (or 1987232 counting only the distinct ones).

The product of its digits is 23040, while the sum is 34.

The spelling of 21426654112 in words is "twenty-one billion, four hundred twenty-six million, six hundred fifty-four thousand, one hundred twelve".