27247765047 has 4 divisors (see below), whose sum is σ = 36330353400. Its totient is φ = 18165176696.

The previous prime is 27247765033. The next prime is 27247765049. The reversal of 27247765047 is 74056774272.

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

It is a cyclic number.

It is not a de Polignac number, because 27247765047 - 2⁴ = 27247765031 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27247765049) 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, 4541294172 + ... + 4541294177.

It is an arithmetic number, because the mean of its divisors is an integer number (9082588350).

Almost surely, 2^27247765047 is an apocalyptic number.

27247765047 is a deficient number, since it is larger than the sum of its proper divisors (9082588353).

27247765047 is an equidigital number, since it uses as much as digits as its factorization.

27247765047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9082588352.

The product of its (nonzero) digits is 4609920, while the sum is 51.

The spelling of 27247765047 in words is "twenty-seven billion, two hundred forty-seven million, seven hundred sixty-five thousand, forty-seven".