545684518944 has 36 divisors (see below), whose sum is σ = 1551790351566. Its totient is φ = 181894839552.

The previous prime is 545684518937. The next prime is 545684518957. The reversal of 545684518944 is 449815486545.

545684518944 is a `hidden beast` number, since 5 + 4 + 5 + 68 + 451 + 89 + 44 = 666.

It can be written as a sum of positive squares in only one way, i.e., 377266208400 + 168418310544 = 614220^2 + 410388^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 947368669 + ... + 947369244.

Almost surely, 2^545684518944 is an apocalyptic number.

It is an amenable number.

545684518944 is an abundant number, since it is smaller than the sum of its proper divisors (1006105832622).

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

545684518944 is a wasteful number, since it uses less digits than its factorization.

545684518944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1894737929 (or 1894737918 counting only the distinct ones).

The product of its digits is 110592000, while the sum is 63.

The spelling of 545684518944 in words is "five hundred forty-five billion, six hundred eighty-four million, five hundred eighteen thousand, nine hundred forty-four".