3864446057249 has 8 divisors (see below), whose sum is σ = 3927916651560. Its totient is φ = 3800979302400.

The previous prime is 3864446057201. The next prime is 3864446057257. The reversal of 3864446057249 is 9427506444683.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1535257293025 + 2329188764224 = 1239055^2 + 1526168^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3864446057249 - 2⁸ = 3864446056993 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3864446057191 and 3864446057200.

It is not an unprimeable number, because it can be changed into a prime (3864446057299) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1105889 + ... + 2991969.

It is an arithmetic number, because the mean of its divisors is an integer number (490989581445).

Almost surely, 2^{3864446057249} is an apocalyptic number.

It is an amenable number.

3864446057249 is a deficient number, since it is larger than the sum of its proper divisors (63470594311).

3864446057249 is a wasteful number, since it uses less digits than its factorization.

3864446057249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1919731.

The product of its (nonzero) digits is 139345920, while the sum is 62.

The spelling of 3864446057249 in words is "three trillion, eight hundred sixty-four billion, four hundred forty-six million, fifty-seven thousand, two hundred forty-nine".