7685775867 has 64 divisors (see below), whose sum is σ = 13141315584. Its totient is φ = 3880007040.

The previous prime is 7685775829. The next prime is 7685775919.

It is a happy number.

7685775867 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 7685775867 - 2¹⁵ = 7685743099 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7685775798 and 7685775807.

It is not an unprimeable number, because it can be changed into a prime (7685775817) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 1307068 + ... + 1312934.

It is an arithmetic number, because the mean of its divisors is an integer number (205333056).

Almost surely, 2^7685775867 is an apocalyptic number.

7685775867 is a gapful number since it is divisible by the number (77) formed by its first and last digit.

7685775867 is a deficient number, since it is larger than the sum of its proper divisors (5455539717).

7685775867 is a wasteful number, since it uses less digits than its factorization.

7685775867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6048.

The product of its digits is 138297600, while the sum is 66.

The square root of 7685775867 is about 87668.5568890010. The cubic root of 7685775867 is about 1973.4641366688.

The spelling of 7685775867 in words is "seven billion, six hundred eighty-five million, seven hundred seventy-five thousand, eight hundred sixty-seven".