611243245453 has 8 divisors (see below), whose sum is σ = 621704639160. Its totient is φ = 600796078080.

The previous prime is 611243245397. The next prime is 611243245499. The reversal of 611243245453 is 354542342116.

It can be written as a sum of positive squares in 4 ways, for example, as 49962084484 + 561281160969 = 223522^2 + 749187^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 611243245453 - 2¹⁷ = 611243114381 is a prime.

It is a super-2 number, since 2×611243245453² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (611243242453) 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, 3469900 + ... + 3641797.

It is an arithmetic number, because the mean of its divisors is an integer number (77713079895).

Almost surely, 2^611243245453 is an apocalyptic number.

It is an amenable number.

611243245453 is a deficient number, since it is larger than the sum of its proper divisors (10461393707).

611243245453 is a wasteful number, since it uses less digits than its factorization.

611243245453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7113167.

The product of its digits is 345600, while the sum is 40.

Adding to 611243245453 its reverse (354542342116), we get a palindrome (965785587569).

The spelling of 611243245453 in words is "six hundred eleven billion, two hundred forty-three million, two hundred forty-five thousand, four hundred fifty-three".