549745547945 has 32 divisors (see below), whose sum is σ = 723329516160. Its totient is φ = 397785047040.

The previous prime is 549745547929. The next prime is 549745547947.

549745547945 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 549745547945 - 2⁴ = 549745547929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (549745547947) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9088361 + ... + 9148649.

It is an arithmetic number, because the mean of its divisors is an integer number (22604047380).

Almost surely, 2^549745547945 is an apocalyptic number.

549745547945 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

549745547945 is a deficient number, since it is larger than the sum of its proper divisors (173583968215).

549745547945 is a wasteful number, since it uses less digits than its factorization.

549745547945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61145.

The product of its digits is 635040000, while the sum is 68.

The spelling of 549745547945 in words is "five hundred forty-nine billion, seven hundred forty-five million, five hundred forty-seven thousand, nine hundred forty-five".