2315544240613 has 4 divisors (see below), whose sum is σ = 2315551895020. Its totient is φ = 2315536586208.

The previous prime is 2315544240547. The next prime is 2315544240617. The reversal of 2315544240613 is 3160424455132.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1789328924964 + 526215315649 = 1337658^2 + 725407^2 .

It is a cyclic number.

It is not a de Polignac number, because 2315544240613 - 2³³ = 2306954306021 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 (2315544240617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3353928 + ... + 3984961.

It is an arithmetic number, because the mean of its divisors is an integer number (578887973755).

Almost surely, 2^{2315544240613} is an apocalyptic number.

It is an amenable number.

2315544240613 is a deficient number, since it is larger than the sum of its proper divisors (7654407).

2315544240613 is an equidigital number, since it uses as much as digits as its factorization.

2315544240613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7654406.

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

Adding to 2315544240613 its reverse (3160424455132), we get a palindrome (5475968695745).

The spelling of 2315544240613 in words is "two trillion, three hundred fifteen billion, five hundred forty-four million, two hundred forty thousand, six hundred thirteen".