545808546864 has 90 divisors (see below), whose sum is σ = 1776894599220. Its totient is φ = 155945297088.

The previous prime is 545808546863. The next prime is 545808546869. The reversal of 545808546864 is 468645808545.

545808546864 is a `hidden beast` number, since 5 + 4 + 5 + 8 + 0 + 8 + 546 + 86 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (545808546863) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 38669854 + ... + 38683965.

Almost surely, 2^545808546864 is an apocalyptic number.

It is an amenable number.

545808546864 is an abundant number, since it is smaller than the sum of its proper divisors (1231086052356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

545808546864 is a wasteful number, since it uses less digits than its factorization.

545808546864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77353847 (or 77353831 counting only the distinct ones).

The product of its (nonzero) digits is 147456000, while the sum is 63.

The spelling of 545808546864 in words is "five hundred forty-five billion, eight hundred eight million, five hundred forty-six thousand, eight hundred sixty-four".