7686956745 has 48 divisors (see below), whose sum is σ = 14422039632. Its totient is φ = 3765081600.

The previous prime is 7686956731. The next prime is 7686956747. The reversal of 7686956745 is 5476596867.

7686956745 is a `hidden beast` number, since 7 + 6 + 8 + 69 + 567 + 4 + 5 = 666.

7686956745 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 8 ways, for example, as 25280784 + 7661675961 = 5028^2 + 87531^2 .

It is not a de Polignac number, because 7686956745 - 2⁵ = 7686956713 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7686956747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 81895 + ... + 148595.

It is an arithmetic number, because the mean of its divisors is an integer number (300459159).

Almost surely, 2^7686956745 is an apocalyptic number.

It is an amenable number.

7686956745 is a deficient number, since it is larger than the sum of its proper divisors (6735082887).

7686956745 is a wasteful number, since it uses less digits than its factorization.

7686956745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66922 (or 66919 counting only the distinct ones).

The product of its digits is 76204800, while the sum is 63.

The square root of 7686956745 is about 87675.2915307386. The cubic root of 7686956745 is about 1973.5652021991.

The spelling of 7686956745 in words is "seven billion, six hundred eighty-six million, nine hundred fifty-six thousand, seven hundred forty-five".