21032544014 has 4 divisors (see below), whose sum is σ = 31548816024. Its totient is φ = 10516272006.

The previous prime is 21032543977. The next prime is 21032544037. The reversal of 21032544014 is 41044523012.

It is a semiprime because it is the product of two primes.

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 as a sum of consecutive naturals, namely, 5258136002 + ... + 5258136005.

It is an arithmetic number, because the mean of its divisors is an integer number (7887204006).

Almost surely, 2^21032544014 is an apocalyptic number.

21032544014 is a deficient number, since it is larger than the sum of its proper divisors (10516272010).

21032544014 is a wasteful number, since it uses less digits than its factorization.

21032544014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10516272009.

The product of its (nonzero) digits is 3840, while the sum is 26.

The spelling of 21032544014 in words is "twenty-one billion, thirty-two million, five hundred forty-four thousand, fourteen".