64609105253 has 8 divisors (see below), whose sum is σ = 80551611840. Its totient is φ = 50344757280.

The previous prime is 64609105229. The next prime is 64609105261. The reversal of 64609105253 is 35250190646.

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 64609105253 - 2¹⁸ = 64608843109 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 64609105253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64609105753) 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, 419539568 + ... + 419539721.

It is an arithmetic number, because the mean of its divisors is an integer number (10068951480).

Almost surely, 2^64609105253 is an apocalyptic number.

It is an amenable number.

64609105253 is a deficient number, since it is larger than the sum of its proper divisors (15942506587).

64609105253 is a wasteful number, since it uses less digits than its factorization.

64609105253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 839079307.

The product of its (nonzero) digits is 194400, while the sum is 41.

Adding to 64609105253 its reverse (35250190646), we get a palindrome (99859295899).

The spelling of 64609105253 in words is "sixty-four billion, six hundred nine million, one hundred five thousand, two hundred fifty-three".