3834615785 has 48 divisors (see below), whose sum is σ = 6288674112. Its totient is φ = 2206512000.

The previous prime is 3834615781. The next prime is 3834615797. The reversal of 3834615785 is 5875164383.

It is not a de Polignac number, because 3834615785 - 2² = 3834615781 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3834615781) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 19691 + ... + 89760.

It is an arithmetic number, because the mean of its divisors is an integer number (131014044).

Almost surely, 2^3834615785 is an apocalyptic number.

3834615785 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3834615785 is a deficient number, since it is larger than the sum of its proper divisors (2454058327).

3834615785 is a wasteful number, since it uses less digits than its factorization.

3834615785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109494 (or 109487 counting only the distinct ones).

The product of its digits is 2419200, while the sum is 50.

The square root of 3834615785 is about 61924.2746021300. The cubic root of 3834615785 is about 1565.2148221475.

The spelling of 3834615785 in words is "three billion, eight hundred thirty-four million, six hundred fifteen thousand, seven hundred eighty-five".