8378171063 has 4 divisors (see below), whose sum is σ = 8428339920. Its totient is φ = 8328002208.

The previous prime is 8378171057. The next prime is 8378171069. The reversal of 8378171063 is 3601718738.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3601718738 = 2 ⋅1800859369.

It is an interprime number because it is at equal distance from previous prime (8378171057) and next prime (8378171069).

It is a cyclic number.

It is not a de Polignac number, because 8378171063 - 2⁸ = 8378170807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8378171069) 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, 25084178 + ... + 25084511.

It is an arithmetic number, because the mean of its divisors is an integer number (2107084980).

Almost surely, 2^8378171063 is an apocalyptic number.

8378171063 is a deficient number, since it is larger than the sum of its proper divisors (50168857).

8378171063 is a wasteful number, since it uses less digits than its factorization.

8378171063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50168856.

The product of its (nonzero) digits is 169344, while the sum is 44.

The square root of 8378171063 is about 91532.3498168817. The cubic root of 8378171063 is about 2031.0303248440.

The spelling of 8378171063 in words is "eight billion, three hundred seventy-eight million, one hundred seventy-one thousand, sixty-three".