8190378745 has 8 divisors (see below), whose sum is σ = 10406598984. Its totient is φ = 6166873344.

The previous prime is 8190378727. The next prime is 8190378767. The reversal of 8190378745 is 5478730918.

8190378745 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2260146681 + 5930232064 = 47541^2 + 77008^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8190378745 - 2¹³ = 8190370553 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8190378692 and 8190378701.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48178614 + ... + 48178783.

It is an arithmetic number, because the mean of its divisors is an integer number (1300824873).

Almost surely, 2^8190378745 is an apocalyptic number.

8190378745 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

8190378745 is a deficient number, since it is larger than the sum of its proper divisors (2216220239).

8190378745 is a wasteful number, since it uses less digits than its factorization.

8190378745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96357419.

The product of its (nonzero) digits is 1693440, while the sum is 52.

The square root of 8190378745 is about 90500.7112955473. The cubic root of 8190378745 is about 2015.7406858169.

The spelling of 8190378745 in words is "eight billion, one hundred ninety million, three hundred seventy-eight thousand, seven hundred forty-five".