8378691713 has 4 divisors (see below), whose sum is σ = 9575647680. Its totient is φ = 7181735748.

The previous prime is 8378691701. The next prime is 8378691733. The reversal of 8378691713 is 3171968738.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8378691713 - 2²⁶ = 8311582849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8378691733) 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, 598477973 + ... + 598477986.

It is an arithmetic number, because the mean of its divisors is an integer number (2393911920).

Almost surely, 2^8378691713 is an apocalyptic number.

It is an amenable number.

8378691713 is a deficient number, since it is larger than the sum of its proper divisors (1196955967).

8378691713 is a wasteful number, since it uses less digits than its factorization.

8378691713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1196955966.

The product of its digits is 1524096, while the sum is 53.

The square root of 8378691713 is about 91535.1938491420. The cubic root of 8378691713 is about 2031.0723958413.

The spelling of 8378691713 in words is "eight billion, three hundred seventy-eight million, six hundred ninety-one thousand, seven hundred thirteen".