27715040711245 has 4 divisors (see below), whose sum is σ = 33258048853500. Its totient is φ = 22172032568992.

The previous prime is 27715040711243. The next prime is 27715040711257. The reversal of 27715040711245 is 54211704051772.

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 3554876451844 + 24160164259401 = 1885438^2 + 4915299^2 .

It is a cyclic number.

It is not a de Polignac number, because 27715040711245 - 2¹ = 27715040711243 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27715040711195 and 27715040711204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27715040711243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2771504071120 + ... + 2771504071129.

It is an arithmetic number, because the mean of its divisors is an integer number (8314512213375).

Almost surely, 2^{27715040711245} is an apocalyptic number.

It is an amenable number.

27715040711245 is a deficient number, since it is larger than the sum of its proper divisors (5543008142255).

27715040711245 is an equidigital number, since it uses as much as digits as its factorization.

27715040711245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5543008142254.

The product of its (nonzero) digits is 548800, while the sum is 46.

The spelling of 27715040711245 in words is "twenty-seven trillion, seven hundred fifteen billion, forty million, seven hundred eleven thousand, two hundred forty-five".