14734820021 has 4 divisors (see below), whose sum is σ = 14737766700. Its totient is φ = 14731873344.

The previous prime is 14734819991. The next prime is 14734820033. The reversal of 14734820021 is 12002843741.

14734820021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 10575859921 + 4158960100 = 102839^2 + 64490^2 .

It is a cyclic number.

It is not a de Polignac number, because 14734820021 - 2¹⁴ = 14734803637 is a prime.

It is a super-2 number, since 2×14734820021² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 14734820021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14734820041) 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, 1465826 + ... + 1475843.

It is an arithmetic number, because the mean of its divisors is an integer number (3684441675).

Almost surely, 2^14734820021 is an apocalyptic number.

It is an amenable number.

14734820021 is a deficient number, since it is larger than the sum of its proper divisors (2946679).

14734820021 is an equidigital number, since it uses as much as digits as its factorization.

14734820021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2946678.

The product of its (nonzero) digits is 10752, while the sum is 32.

The spelling of 14734820021 in words is "fourteen billion, seven hundred thirty-four million, eight hundred twenty thousand, twenty-one".