549142313631 has 8 divisors (see below), whose sum is σ = 742219748400. Its totient is φ = 361079877312.

The previous prime is 549142313581. The next prime is 549142313669. The reversal of 549142313631 is 136313241945.

It is a happy number.

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

It is not a de Polignac number, because 549142313631 - 2²¹ = 549140216479 is a prime.

It is a super-2 number, since 2×549142313631² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549142313131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1253749356 + ... + 1253749793.

It is an arithmetic number, because the mean of its divisors is an integer number (92777468550).

Almost surely, 2^549142313631 is an apocalyptic number.

549142313631 is a deficient number, since it is larger than the sum of its proper divisors (193077434769).

549142313631 is a wasteful number, since it uses less digits than its factorization.

549142313631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2507499225.

The product of its digits is 233280, while the sum is 42.

The spelling of 549142313631 in words is "five hundred forty-nine billion, one hundred forty-two million, three hundred thirteen thousand, six hundred thirty-one".