549939684131 has 4 divisors (see below), whose sum is σ = 549954345072. Its totient is φ = 549925023192.

The previous prime is 549939684109. The next prime is 549939684143. The reversal of 549939684131 is 131486939945.

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 549939684131 - 2¹⁴ = 549939667747 is a prime.

It is a super-2 number, since 2×549939684131² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (549939684101) 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, 7274060 + ... + 7349273.

It is an arithmetic number, because the mean of its divisors is an integer number (137488586268).

Almost surely, 2^549939684131 is an apocalyptic number.

549939684131 is a deficient number, since it is larger than the sum of its proper divisors (14660941).

549939684131 is a wasteful number, since it uses less digits than its factorization.

549939684131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14660940.

The product of its digits is 25194240, while the sum is 62.

The spelling of 549939684131 in words is "five hundred forty-nine billion, nine hundred thirty-nine million, six hundred eighty-four thousand, one hundred thirty-one".