213476585453 has 4 divisors (see below), whose sum is σ = 213671899068. Its totient is φ = 213281271840.

The previous prime is 213476585437. The next prime is 213476585471. The reversal of 213476585453 is 354585674312.

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 211307541124 + 2169044329 = 459682^2 + 46573^2 .

It is a cyclic number.

It is not a de Polignac number, because 213476585453 - 2⁴ = 213476585437 is a prime.

It is a super-2 number, since 2×213476585453² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213476585395 and 213476585404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213476585473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97655168 + ... + 97657353.

It is an arithmetic number, because the mean of its divisors is an integer number (53417974767).

Almost surely, 2^213476585453 is an apocalyptic number.

It is an amenable number.

213476585453 is a deficient number, since it is larger than the sum of its proper divisors (195313615).

213476585453 is a wasteful number, since it uses less digits than its factorization.

213476585453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195313614.

The product of its digits is 12096000, while the sum is 53.

The spelling of 213476585453 in words is "two hundred thirteen billion, four hundred seventy-six million, five hundred eighty-five thousand, four hundred fifty-three".