3444378785 has 16 divisors (see below), whose sum is σ = 4228416000. Its totient is φ = 2692262976.

The previous prime is 3444378781. The next prime is 3444378797. The reversal of 3444378785 is 5878734443.

It is a cyclic number.

It is not a de Polignac number, because 3444378785 - 2² = 3444378781 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3444378781) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128531 + ... + 152999.

It is an arithmetic number, because the mean of its divisors is an integer number (264276000).

Almost surely, 2^3444378785 is an apocalyptic number.

It is an amenable number.

3444378785 is a deficient number, since it is larger than the sum of its proper divisors (784037215).

3444378785 is a wasteful number, since it uses less digits than its factorization.

3444378785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25120.

The product of its digits is 9031680, while the sum is 53.

The square root of 3444378785 is about 58688.8301553200. The cubic root of 3444378785 is about 1510.2087024953.

The spelling of 3444378785 in words is "three billion, four hundred forty-four million, three hundred seventy-eight thousand, seven hundred eighty-five".