8378629173 has 16 divisors (see below), whose sum is σ = 12471620800. Its totient is φ = 5559276240.

The previous prime is 8378629159. The next prime is 8378629213. The reversal of 8378629173 is 3719268738.

8378629173 is a `hidden beast` number, since 8 + 3 + 7 + 8 + 629 + 1 + 7 + 3 = 666.

It is not a de Polignac number, because 8378629173 - 2⁴ = 8378629157 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8378629123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 729658 + ... + 741051.

It is an arithmetic number, because the mean of its divisors is an integer number (779476300).

Almost surely, 2^8378629173 is an apocalyptic number.

It is an amenable number.

8378629173 is a deficient number, since it is larger than the sum of its proper divisors (4092991627).

8378629173 is a wasteful number, since it uses less digits than its factorization.

8378629173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1470929 (or 1470923 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 54.

The square root of 8378629173 is about 91534.8522312676. The cubic root of 8378629173 is about 2031.0673424038.

The spelling of 8378629173 in words is "eight billion, three hundred seventy-eight million, six hundred twenty-nine thousand, one hundred seventy-three".