21468141448 has 32 divisors (see below), whose sum is σ = 43371783000. Its totient is φ = 9903195648.

The previous prime is 21468141413. The next prime is 21468141451. The reversal of 21468141448 is 84414186412.

It can be written as a sum of positive squares in 4 ways, for example, as 18669943044 + 2798198404 = 136638^2 + 52898^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149740 + ... + 255652.

Almost surely, 2^21468141448 is an apocalyptic number.

It is an amenable number.

21468141448 is an abundant number, since it is smaller than the sum of its proper divisors (21903641552).

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

21468141448 is a wasteful number, since it uses less digits than its factorization.

21468141448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107881 (or 107877 counting only the distinct ones).

The product of its digits is 196608, while the sum is 43.

The spelling of 21468141448 in words is "twenty-one billion, four hundred sixty-eight million, one hundred forty-one thousand, four hundred forty-eight".