549316406231 has 4 divisors (see below), whose sum is σ = 551405062032. Its totient is φ = 547227750432.

The previous prime is 549316406203. The next prime is 549316406251. The reversal of 549316406231 is 132604613945.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 549316406231 - 2⁶ = 549316406167 is a prime.

It is a super-2 number, since 2×549316406231² (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 (549316406251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1044327506 + ... + 1044328031.

It is an arithmetic number, because the mean of its divisors is an integer number (137851265508).

Almost surely, 2^549316406231 is an apocalyptic number.

549316406231 is a deficient number, since it is larger than the sum of its proper divisors (2088655801).

549316406231 is a wasteful number, since it uses less digits than its factorization.

549316406231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2088655800.

The product of its (nonzero) digits is 466560, while the sum is 44.

The spelling of 549316406231 in words is "five hundred forty-nine billion, three hundred sixteen million, four hundred six thousand, two hundred thirty-one".