21364433014 has 16 divisors (see below), whose sum is σ = 32349155328. Its totient is φ = 10581642792.

The previous prime is 21364433011. The next prime is 21364433059. The reversal of 21364433014 is 41033446312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21364433011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99337 + ... + 229339.

It is an arithmetic number, because the mean of its divisors is an integer number (2021822208).

Almost surely, 2^21364433014 is an apocalyptic number.

21364433014 is a deficient number, since it is larger than the sum of its proper divisors (10984722314).

21364433014 is a wasteful number, since it uses less digits than its factorization.

21364433014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130779.

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 21364433014 its reverse (41033446312), we get a palindrome (62397879326).

The spelling of 21364433014 in words is "twenty-one billion, three hundred sixty-four million, four hundred thirty-three thousand, fourteen".