2684129149 has 6 divisors (see below), whose sum is σ = 2906483226. Its totient is φ = 2477657520.

The previous prime is 2684129111. The next prime is 2684129159. The reversal of 2684129149 is 9419214862.

It can be written as a sum of positive squares in 3 ways, for example, as 270372249 + 2413756900 = 16443^2 + 49130^2 .

It is not a de Polignac number, because 2684129149 - 2²¹ = 2682031997 is a prime.

It is a super-2 number, since 2×2684129149² = 14409098577022928402, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2684129099 and 2684129108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2684129159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7941042 + ... + 7941379.

It is an arithmetic number, because the mean of its divisors is an integer number (484413871).

Almost surely, 2^2684129149 is an apocalyptic number.

It is an amenable number.

2684129149 is a deficient number, since it is larger than the sum of its proper divisors (222354077).

2684129149 is a wasteful number, since it uses less digits than its factorization.

2684129149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15882447 (or 15882434 counting only the distinct ones).

The product of its digits is 248832, while the sum is 46.

The square root of 2684129149 is about 51808.5818084224. The cubic root of 2684129149 is about 1389.7429176226.

The spelling of 2684129149 in words is "two billion, six hundred eighty-four million, one hundred twenty-nine thousand, one hundred forty-nine".