8427585945 has 32 divisors (see below), whose sum is σ = 14334410880. Its totient is φ = 4215974400.

The previous prime is 8427585931. The next prime is 8427585961. The reversal of 8427585945 is 5495857248.

It is not a de Polignac number, because 8427585945 - 2⁹ = 8427585433 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 117604 + ... + 175173.

It is an arithmetic number, because the mean of its divisors is an integer number (447950340).

Almost surely, 2^8427585945 is an apocalyptic number.

It is an amenable number.

8427585945 is a deficient number, since it is larger than the sum of its proper divisors (5906824935).

8427585945 is a wasteful number, since it uses less digits than its factorization.

8427585945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292905.

The product of its digits is 16128000, while the sum is 57.

The square root of 8427585945 is about 91801.8842126892. The cubic root of 8427585945 is about 2035.0155403716.

The spelling of 8427585945 in words is "eight billion, four hundred twenty-seven million, five hundred eighty-five thousand, nine hundred forty-five".