10643610253253 has 4 divisors (see below), whose sum is σ = 10643623635168. Its totient is φ = 10643596871340.

The previous prime is 10643610253231. The next prime is 10643610253273. The reversal of 10643610253253 is 35235201634601.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10643610253253 is a prime.

It is a super-2 number, since 2×10643610253253² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

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 10643610253253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10643610253273) 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, 5417051 + ... + 7115592.

It is an arithmetic number, because the mean of its divisors is an integer number (2660905908792).

Almost surely, 2^{10643610253253} is an apocalyptic number.

It is an amenable number.

10643610253253 is a deficient number, since it is larger than the sum of its proper divisors (13381915).

10643610253253 is an equidigital number, since it uses as much as digits as its factorization.

10643610253253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13381914.

The product of its (nonzero) digits is 388800, while the sum is 41.

Adding to 10643610253253 its reverse (35235201634601), we get a palindrome (45878811887854).

The spelling of 10643610253253 in words is "ten trillion, six hundred forty-three billion, six hundred ten million, two hundred fifty-three thousand, two hundred fifty-three".