21414264053 has 24 divisors (see below), whose sum is σ = 26835926040. Its totient is φ = 16937303040.

The previous prime is 21414264019. The next prime is 21414264077. The reversal of 21414264053 is 35046241412.

It can be written as a sum of positive squares in 4 ways, for example, as 80156209 + 21334107844 = 8953^2 + 146062^2 .

It is not a de Polignac number, because 21414264053 - 2³⁴ = 4234394869 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21414264953) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3513833 + ... + 3519921.

It is an arithmetic number, because the mean of its divisors is an integer number (1118163585).

Almost surely, 2^21414264053 is an apocalyptic number.

It is an amenable number.

21414264053 is a deficient number, since it is larger than the sum of its proper divisors (5421661987).

21414264053 is a wasteful number, since it uses less digits than its factorization.

21414264053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11637 (or 11630 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The spelling of 21414264053 in words is "twenty-one billion, four hundred fourteen million, two hundred sixty-four thousand, fifty-three".