21404535014 has 16 divisors (see below), whose sum is σ = 32278691808. Its totient is φ = 10645001472.

The previous prime is 21404535013. The next prime is 21404535023. The reversal of 21404535014 is 41053540412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21404535013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2404079 + ... + 2412965.

It is an arithmetic number, because the mean of its divisors is an integer number (2017418238).

Almost surely, 2^21404535014 is an apocalyptic number.

21404535014 is a deficient number, since it is larger than the sum of its proper divisors (10874156794).

21404535014 is a wasteful number, since it uses less digits than its factorization.

21404535014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15199.

The product of its (nonzero) digits is 9600, while the sum is 29.

The spelling of 21404535014 in words is "twenty-one billion, four hundred four million, five hundred thirty-five thousand, fourteen".