3844442407257 has 6 divisors (see below), whose sum is σ = 5553083477162. Its totient is φ = 2562961604832.

The previous prime is 3844442407241. The next prime is 3844442407277. The reversal of 3844442407257 is 7527042444483.

3844442407257 is a `hidden beast` number, since 3 + 8 + 44 + 442 + 40 + 72 + 57 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2003289221376 + 1841153185881 = 1415376^2 + 1356891^2 .

It is not a de Polignac number, because 3844442407257 - 2⁴ = 3844442407241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3844442407237) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 213580133728 + ... + 213580133745.

Almost surely, 2^{3844442407257} is an apocalyptic number.

It is an amenable number.

3844442407257 is a deficient number, since it is larger than the sum of its proper divisors (1708641069905).

3844442407257 is a wasteful number, since it uses less digits than its factorization.

3844442407257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427160267479 (or 427160267476 counting only the distinct ones).

The product of its (nonzero) digits is 24084480, while the sum is 54.

The spelling of 3844442407257 in words is "three trillion, eight hundred forty-four billion, four hundred forty-two million, four hundred seven thousand, two hundred fifty-seven".