845574475547 has 8 divisors (see below), whose sum is σ = 846219276000. Its totient is φ = 844929805824.

The previous prime is 845574475477. The next prime is 845574475591. The reversal of 845574475547 is 745574475548.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 845574475547 - 2²⁸ = 845306040091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (845574415547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15737354 + ... + 15790992.

It is an arithmetic number, because the mean of its divisors is an integer number (105777409500).

Almost surely, 2^845574475547 is an apocalyptic number.

845574475547 is a deficient number, since it is larger than the sum of its proper divisors (644800453).

845574475547 is a wasteful number, since it uses less digits than its factorization.

845574475547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65365.

The product of its digits is 439040000, while the sum is 65.

Subtracting from 845574475547 its reverse (745574475548), we obtain a palindrome (99999999999).

The spelling of 845574475547 in words is "eight hundred forty-five billion, five hundred seventy-four million, four hundred seventy-five thousand, five hundred forty-seven".