21002289514 has 16 divisors (see below), whose sum is σ = 31911909120. Its totient is φ = 10365067440.

The previous prime is 21002289499. The next prime is 21002289523. The reversal of 21002289514 is 41598220012.

It is a self number, because there is not a number n which added to its sum of digits gives 21002289514.

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 7 ways as a sum of consecutive naturals, for example, 552459 + ... + 589249.

It is an arithmetic number, because the mean of its divisors is an integer number (1994494320).

Almost surely, 2^21002289514 is an apocalyptic number.

21002289514 is a deficient number, since it is larger than the sum of its proper divisors (10909619606).

21002289514 is a wasteful number, since it uses less digits than its factorization.

21002289514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40485.

The product of its (nonzero) digits is 11520, while the sum is 34.

The spelling of 21002289514 in words is "twenty-one billion, two million, two hundred eighty-nine thousand, five hundred fourteen".