438103866841 has 4 divisors (see below), whose sum is σ = 438125600052. Its totient is φ = 438082133632.

The previous prime is 438103866821. The next prime is 438103866859. The reversal of 438103866841 is 148668301834.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 227610097225 + 210493769616 = 477085^2 + 458796^2 .

It is a cyclic number.

It is not a de Polignac number, because 438103866841 - 2²¹ = 438101769689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (438103866821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10836340 + ... + 10876693.

It is an arithmetic number, because the mean of its divisors is an integer number (109531400013).

Almost surely, 2^438103866841 is an apocalyptic number.

It is an amenable number.

438103866841 is a deficient number, since it is larger than the sum of its proper divisors (21733211).

438103866841 is a wasteful number, since it uses less digits than its factorization.

438103866841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21733210.

The product of its (nonzero) digits is 2654208, while the sum is 52.

The spelling of 438103866841 in words is "four hundred thirty-eight billion, one hundred three million, eight hundred sixty-six thousand, eight hundred forty-one".