845456505 has 16 divisors (see below), whose sum is σ = 1353530304. Its totient is φ = 450643520.

The previous prime is 845456503. The next prime is 845456527. The reversal of 845456505 is 505654548.

It is not a de Polignac number, because 845456505 - 2¹ = 845456503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (845456503) 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, 11035 + ... + 42575.

It is an arithmetic number, because the mean of its divisors is an integer number (84595644).

Almost surely, 2^845456505 is an apocalyptic number.

It is an amenable number.

845456505 is a deficient number, since it is larger than the sum of its proper divisors (508073799).

845456505 is a wasteful number, since it uses less digits than its factorization.

845456505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33336.

The product of its (nonzero) digits is 480000, while the sum is 42.

The square root of 845456505 is about 29076.7347719788. The cubic root of 845456505 is about 945.5774136968.

The spelling of 845456505 in words is "eight hundred forty-five million, four hundred fifty-six thousand, five hundred five".