12615245653 has 4 divisors (see below), whose sum is σ = 12629932480. Its totient is φ = 12600558828.

The previous prime is 12615245633. The next prime is 12615245711. The reversal of 12615245653 is 35654251621.

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 not a de Polignac number, because 12615245653 - 2⁹ = 12615245141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12615245603) 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, 7342125 + ... + 7343842.

It is an arithmetic number, because the mean of its divisors is an integer number (3157483120).

Almost surely, 2^12615245653 is an apocalyptic number.

It is an amenable number.

12615245653 is a deficient number, since it is larger than the sum of its proper divisors (14686827).

12615245653 is an equidigital number, since it uses as much as digits as its factorization.

12615245653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14686826.

The product of its digits is 216000, while the sum is 40.

The spelling of 12615245653 in words is "twelve billion, six hundred fifteen million, two hundred forty-five thousand, six hundred fifty-three".