438849389427 has 32 divisors (see below), whose sum is σ = 615545174016. Its totient is φ = 277722931200.

The previous prime is 438849389417. The next prime is 438849389449. The reversal of 438849389427 is 724983948834.

It is not a de Polignac number, because 438849389427 - 2³⁸ = 163971482483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (438849389417) 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, 31159027 + ... + 31173107.

It is an arithmetic number, because the mean of its divisors is an integer number (19235786688).

Almost surely, 2^438849389427 is an apocalyptic number.

438849389427 is a deficient number, since it is larger than the sum of its proper divisors (176695784589).

438849389427 is a wasteful number, since it uses less digits than its factorization.

438849389427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20491.

The product of its digits is 334430208, while the sum is 69.

The spelling of 438849389427 in words is "four hundred thirty-eight billion, eight hundred forty-nine million, three hundred eighty-nine thousand, four hundred twenty-seven".