3864671732605 has 16 divisors (see below), whose sum is σ = 4713788749104. Its totient is φ = 3040952302080.

The previous prime is 3864671732591. The next prime is 3864671732659. The reversal of 3864671732605 is 5062371764683.

3864671732605 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 503675509401 + 3360996223204 = 709701^2 + 1833302^2 .

It is not a de Polignac number, because 3864671732605 - 2¹⁹ = 3864671208317 is a prime.

It is a super-2 number, since 2×3864671732605² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3864671732605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9777577 + ... + 10165153.

It is an arithmetic number, because the mean of its divisors is an integer number (294611796819).

Almost surely, 2^{3864671732605} is an apocalyptic number.

It is an amenable number.

3864671732605 is a deficient number, since it is larger than the sum of its proper divisors (849117016499).

3864671732605 is a wasteful number, since it uses less digits than its factorization.

3864671732605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420336.

The product of its (nonzero) digits is 30481920, while the sum is 58.

The spelling of 3864671732605 in words is "three trillion, eight hundred sixty-four billion, six hundred seventy-one million, seven hundred thirty-two thousand, six hundred five".