3864141785 has 32 divisors (see below), whose sum is σ = 5518927872. Its totient is φ = 2541450240.

The previous prime is 3864141781. The next prime is 3864141823. The reversal of 3864141785 is 5871414683.

It is not a de Polignac number, because 3864141785 - 2² = 3864141781 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3864141781) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 106847 + ... + 138363.

It is an arithmetic number, because the mean of its divisors is an integer number (172466496).

Almost surely, 2^3864141785 is an apocalyptic number.

3864141785 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3864141785 is a deficient number, since it is larger than the sum of its proper divisors (1654786087).

3864141785 is a wasteful number, since it uses less digits than its factorization.

3864141785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31673.

The product of its digits is 645120, while the sum is 47.

The square root of 3864141785 is about 62162.2215256180. The cubic root of 3864141785 is about 1569.2218661477.

The spelling of 3864141785 in words is "three billion, eight hundred sixty-four million, one hundred forty-one thousand, seven hundred eighty-five".