3549942819 has 12 divisors (see below), whose sum is σ = 5128237296. Its totient is φ = 2366378352.

The previous prime is 3549942817. The next prime is 3549942821. The reversal of 3549942819 is 9182499453.

3549942819 is a `hidden beast` number, since 3 + 549 + 94 + 2 + 8 + 1 + 9 = 666.

It is an interprime number because it is at equal distance from previous prime (3549942817) and next prime (3549942821).

It is not a de Polignac number, because 3549942819 - 2¹ = 3549942817 is a prime.

It is a super-2 number, since 2×3549942819² = 25204188036339333522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3549942817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 116929 + ... + 144125.

It is an arithmetic number, because the mean of its divisors is an integer number (427353108).

Almost surely, 2^3549942819 is an apocalyptic number.

3549942819 is a deficient number, since it is larger than the sum of its proper divisors (1578294477).

3549942819 is a wasteful number, since it uses less digits than its factorization.

3549942819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41706 (or 41703 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 54.

The square root of 3549942819 is about 59581.3965848401. The cubic root of 3549942819 is about 1525.4821113342.

The spelling of 3549942819 in words is "three billion, five hundred forty-nine million, nine hundred forty-two thousand, eight hundred nineteen".