21549527914 has 8 divisors (see below), whose sum is σ = 32429583648. Its totient is φ = 10739666700.

The previous prime is 21549527911. The next prime is 21549527927. The reversal of 21549527914 is 41972594512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (21549527911) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 17547862 + ... + 17549089.

It is an arithmetic number, because the mean of its divisors is an integer number (4053697956).

Almost surely, 2^21549527914 is an apocalyptic number.

21549527914 is a deficient number, since it is larger than the sum of its proper divisors (10880055734).

21549527914 is a wasteful number, since it uses less digits than its factorization.

21549527914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35097260.

The product of its digits is 907200, while the sum is 49.

The spelling of 21549527914 in words is "twenty-one billion, five hundred forty-nine million, five hundred twenty-seven thousand, nine hundred fourteen".