21443010886 has 48 divisors (see below), whose sum is σ = 35754619824. Its totient is φ = 9637056000.

The previous prime is 21443010871. The next prime is 21443010931. The reversal of 21443010886 is 68801034412.

It is a super-2 number, since 2×21443010886² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 9921646 + ... + 9923806.

It is an arithmetic number, because the mean of its divisors is an integer number (744887913).

Almost surely, 2^21443010886 is an apocalyptic number.

21443010886 is a deficient number, since it is larger than the sum of its proper divisors (14311608938).

21443010886 is a wasteful number, since it uses less digits than its factorization.

21443010886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2629 (or 2618 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 37.

The spelling of 21443010886 in words is "twenty-one billion, four hundred forty-three million, ten thousand, eight hundred eighty-six".