3912405819 has 32 divisors (see below), whose sum is σ = 6094725120. Its totient is φ = 2185895712.

The previous prime is 3912405811. The next prime is 3912405841. The reversal of 3912405819 is 9185042193.

It is not a de Polignac number, because 3912405819 - 2³ = 3912405811 is a prime.

It is a super-3 number, since 3×3912405819³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (3912405811) 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 31 ways as a sum of consecutive naturals, for example, 1952272 + ... + 1954274.

It is an arithmetic number, because the mean of its divisors is an integer number (190460160).

Almost surely, 2^3912405819 is an apocalyptic number.

3912405819 is a deficient number, since it is larger than the sum of its proper divisors (2182319301).

3912405819 is a wasteful number, since it uses less digits than its factorization.

3912405819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4039.

The product of its (nonzero) digits is 77760, while the sum is 42.

The square root of 3912405819 is about 62549.2271654894. The cubic root of 3912405819 is about 1575.7281684093.

The spelling of 3912405819 in words is "three billion, nine hundred twelve million, four hundred five thousand, eight hundred nineteen".