15243332727613 has 4 divisors (see below), whose sum is σ = 15243805318780. Its totient is φ = 15242860136448.

The previous prime is 15243332727599. The next prime is 15243332727671. The reversal of 15243332727613 is 31672723334251.

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 9556834336569 + 5686498391044 = 3091413^2 + 2384638^2 .

It is a cyclic number.

It is not a de Polignac number, because 15243332727613 - 2³³ = 15234742793021 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 (15243332727313) 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, 236247198 + ... + 236311711.

It is an arithmetic number, because the mean of its divisors is an integer number (3810951329695).

Almost surely, 2^{15243332727613} is an apocalyptic number.

It is an amenable number.

15243332727613 is a deficient number, since it is larger than the sum of its proper divisors (472591167).

15243332727613 is an equidigital number, since it uses as much as digits as its factorization.

15243332727613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472591166.

The product of its digits is 3810240, while the sum is 49.

The spelling of 15243332727613 in words is "fifteen trillion, two hundred forty-three billion, three hundred thirty-two million, seven hundred twenty-seven thousand, six hundred thirteen".