8361441638 has 16 divisors (see below), whose sum is σ = 13684510224. Its totient is φ = 3800057760.

The previous prime is 8361441637. The next prime is 8361441661.

8361441638 is nontrivially palindromic in base 10.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8361441637) 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, 132956 + ... + 185472.

It is an arithmetic number, because the mean of its divisors is an integer number (855281889).

Almost surely, 2^8361441638 is an apocalyptic number.

8361441638 is a deficient number, since it is larger than the sum of its proper divisors (5323068586).

8361441638 is a wasteful number, since it uses less digits than its factorization.

8361441638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59767.

The product of its digits is 331776, while the sum is 44.

The square root of 8361441638 is about 91440.9188383406. The cubic root of 8361441638 is about 2029.6775789225.

The spelling of 8361441638 in words is "eight billion, three hundred sixty-one million, four hundred forty-one thousand, six hundred thirty-eight".