27480565965 has 16 divisors (see below), whose sum is σ = 44063068608. Its totient is φ = 14624914176.

The previous prime is 27480565961. The next prime is 27480565997. The reversal of 27480565965 is 56956508472.

It is not a de Polignac number, because 27480565965 - 2² = 27480565961 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27480565961) 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, 1954492 + ... + 1968501.

It is an arithmetic number, because the mean of its divisors is an integer number (2753941788).

Almost surely, 2^27480565965 is an apocalyptic number.

It is an amenable number.

27480565965 is a deficient number, since it is larger than the sum of its proper divisors (16582502643).

27480565965 is a wasteful number, since it uses less digits than its factorization.

27480565965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3923468.

The product of its (nonzero) digits is 18144000, while the sum is 57.

The spelling of 27480565965 in words is "twenty-seven billion, four hundred eighty million, five hundred sixty-five thousand, nine hundred sixty-five".