7687063913 has 4 divisors (see below), whose sum is σ = 7726084740. Its totient is φ = 7648043088.

The previous prime is 7687063907. The next prime is 7687063949. The reversal of 7687063913 is 3193607867.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3193607867 = 3371 ⋅947377.

It can be written as a sum of positive squares in 2 ways, for example, as 6515234089 + 1171829824 = 80717^2 + 34232^2 .

It is a cyclic number.

It is not a de Polignac number, because 7687063913 - 2⁶ = 7687063849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7687063903) 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 3 ways as a sum of consecutive naturals, for example, 19510118 + ... + 19510511.

It is an arithmetic number, because the mean of its divisors is an integer number (1931521185).

Almost surely, 2^7687063913 is an apocalyptic number.

It is an amenable number.

7687063913 is a deficient number, since it is larger than the sum of its proper divisors (39020827).

7687063913 is a wasteful number, since it uses less digits than its factorization.

7687063913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39020826.

The product of its (nonzero) digits is 1143072, while the sum is 50.

The square root of 7687063913 is about 87675.9026928152. The cubic root of 7687063913 is about 1973.5743736679.

The spelling of 7687063913 in words is "seven billion, six hundred eighty-seven million, sixty-three thousand, nine hundred thirteen".