3864706815 has 32 divisors (see below), whose sum is σ = 6552354816. Its totient is φ = 1938424320.

The previous prime is 3864706793. The next prime is 3864706847. The reversal of 3864706815 is 5186074683.

It is not a de Polignac number, because 3864706815 - 2⁷ = 3864706687 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 (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 369954 + ... + 380256.

It is an arithmetic number, because the mean of its divisors is an integer number (204761088).

Almost surely, 2^3864706815 is an apocalyptic number.

3864706815 is a deficient number, since it is larger than the sum of its proper divisors (2687648001).

3864706815 is a wasteful number, since it uses less digits than its factorization.

3864706815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11799.

The product of its (nonzero) digits is 967680, while the sum is 48.

The square root of 3864706815 is about 62166.7661616719. The cubic root of 3864706815 is about 1569.2983483497.

The spelling of 3864706815 in words is "three billion, eight hundred sixty-four million, seven hundred six thousand, eight hundred fifteen".