27480288434565 has 16 divisors (see below), whose sum is σ = 43968589846848. Its totient is φ = 14656111047936.

The previous prime is 27480288434563. The next prime is 27480288434569. The reversal of 27480288434565 is 56543488208472.

It is a happy number.

It is not a de Polignac number, because 27480288434565 - 2¹ = 27480288434563 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27480288434496 and 27480288434505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27480288434563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3027949 + ... + 8008061.

It is an arithmetic number, because the mean of its divisors is an integer number (2748036865428).

Almost surely, 2^{27480288434565} is an apocalyptic number.

It is an amenable number.

27480288434565 is a deficient number, since it is larger than the sum of its proper divisors (16488301412283).

27480288434565 is a wasteful number, since it uses less digits than its factorization.

27480288434565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5347988.

The product of its (nonzero) digits is 412876800, while the sum is 66.

The spelling of 27480288434565 in words is "twenty-seven trillion, four hundred eighty billion, two hundred eighty-eight million, four hundred thirty-four thousand, five hundred sixty-five".