27245113653 has 4 divisors (see below), whose sum is σ = 36326818208. Its totient is φ = 18163409100.

The previous prime is 27245113619. The next prime is 27245113667. The reversal of 27245113653 is 35631154272.

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 de Polignac number, because none of the positive numbers 2^k-27245113653 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27245113603) 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, 4540852273 + ... + 4540852278.

It is an arithmetic number, because the mean of its divisors is an integer number (9081704552).

Almost surely, 2^27245113653 is an apocalyptic number.

It is an amenable number.

27245113653 is a deficient number, since it is larger than the sum of its proper divisors (9081704555).

27245113653 is an equidigital number, since it uses as much as digits as its factorization.

27245113653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9081704554.

The product of its digits is 151200, while the sum is 39.

The spelling of 27245113653 in words is "twenty-seven billion, two hundred forty-five million, one hundred thirteen thousand, six hundred fifty-three".