549245960989 has 8 divisors (see below), whose sum is σ = 599476576032. Its totient is φ = 499065206640.

The previous prime is 549245960987. The next prime is 549245961053. The reversal of 549245960989 is 989069542945.

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

It is not a de Polignac number, because 549245960989 - 2¹ = 549245960987 is a prime.

It is a super-2 number, since 2×549245960989² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549245960981) 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, 12442134 + ... + 12486199.

It is an arithmetic number, because the mean of its divisors is an integer number (74934572004).

Almost surely, 2^549245960989 is an apocalyptic number.

It is an amenable number.

549245960989 is a deficient number, since it is larger than the sum of its proper divisors (50230615043).

549245960989 is a wasteful number, since it uses less digits than its factorization.

549245960989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24930347.

The product of its (nonzero) digits is 251942400, while the sum is 70.

The spelling of 549245960989 in words is "five hundred forty-nine billion, two hundred forty-five million, nine hundred sixty thousand, nine hundred eighty-nine".