8378680765 has 48 divisors (see below), whose sum is σ = 12642445872. Its totient is φ = 5283726336.

The previous prime is 8378680759. The next prime is 8378680823. The reversal of 8378680765 is 5670868738.

It can be written as a sum of positive squares in 8 ways, for example, as 3713927364 + 4664753401 = 60942^2 + 68299^2 .

It is not a de Polignac number, because 8378680765 - 2⁷ = 8378680637 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 877497 + ... + 886993.

It is an arithmetic number, because the mean of its divisors is an integer number (263384289).

Almost surely, 2^8378680765 is an apocalyptic number.

It is an amenable number.

8378680765 is a deficient number, since it is larger than the sum of its proper divisors (4263765107).

8378680765 is a wasteful number, since it uses less digits than its factorization.

8378680765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9806 (or 9799 counting only the distinct ones).

The product of its (nonzero) digits is 13547520, while the sum is 58.

The square root of 8378680765 is about 91535.1340469877. The cubic root of 8378680765 is about 2031.0715112087.

The spelling of 8378680765 in words is "eight billion, three hundred seventy-eight million, six hundred eighty thousand, seven hundred sixty-five".