45505312647 has 4 divisors (see below), whose sum is σ = 60673750200. Its totient is φ = 30336875096.

The previous prime is 45505312609. The next prime is 45505312651. The reversal of 45505312647 is 74621350554.

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 45505312647 - 2⁷ = 45505312519 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 45505312599 and 45505312608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45505312247) 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, 7584218772 + ... + 7584218777.

It is an arithmetic number, because the mean of its divisors is an integer number (15168437550).

Almost surely, 2^45505312647 is an apocalyptic number.

45505312647 is a deficient number, since it is larger than the sum of its proper divisors (15168437553).

45505312647 is a wasteful number, since it uses less digits than its factorization.

45505312647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15168437552.

The product of its (nonzero) digits is 504000, while the sum is 42.

The spelling of 45505312647 in words is "forty-five billion, five hundred five million, three hundred twelve thousand, six hundred forty-seven".