3941942815 has 16 divisors (see below), whose sum is σ = 4868028000. Its totient is φ = 3062102400.

The previous prime is 3941942803. The next prime is 3941942861. The reversal of 3941942815 is 5182491493.

It is a de Polignac number, because none of the positive numbers 2^k-3941942815 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70965 + ... + 113665.

It is an arithmetic number, because the mean of its divisors is an integer number (304251750).

Almost surely, 2^3941942815 is an apocalyptic number.

3941942815 is a deficient number, since it is larger than the sum of its proper divisors (926085185).

3941942815 is a wasteful number, since it uses less digits than its factorization.

3941942815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43242.

The product of its digits is 311040, while the sum is 46.

The square root of 3941942815 is about 62784.8932068854. The cubic root of 3941942815 is about 1579.6835897672.

The spelling of 3941942815 in words is "three billion, nine hundred forty-one million, nine hundred forty-two thousand, eight hundred fifteen".