8381445106 has 4 divisors (see below), whose sum is σ = 12572167662. Its totient is φ = 4190722552.

The previous prime is 8381445101. The next prime is 8381445209. The reversal of 8381445106 is 6015441838.

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

It can be written as a sum of positive squares in only one way, i.e., 5624250025 + 2757195081 = 74995^2 + 52509^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (8381445101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2095361275 + ... + 2095361278.

Almost surely, 2^8381445106 is an apocalyptic number.

8381445106 is a deficient number, since it is larger than the sum of its proper divisors (4190722556).

8381445106 is a wasteful number, since it uses less digits than its factorization.

8381445106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4190722555.

The product of its (nonzero) digits is 92160, while the sum is 40.

The square root of 8381445106 is about 91550.2326922220. The cubic root of 8381445106 is about 2031.2948541215.

The spelling of 8381445106 in words is "eight billion, three hundred eighty-one million, four hundred forty-five thousand, one hundred six".