7678888067 has 2 divisors, whose sum is σ = 7678888068. Its totient is φ = 7678888066.

The previous prime is 7678888039. The next prime is 7678888069. The reversal of 7678888067 is 7608888767.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7678888067 - 2¹⁰ = 7678887043 is a prime.

Together with 7678888069, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 7678887994 and 7678888012.

It is not a weakly prime, because it can be changed into another prime (7678888069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3839444033 + 3839444034.

It is an arithmetic number, because the mean of its divisors is an integer number (3839444034).

Almost surely, 2^7678888067 is an apocalyptic number.

7678888067 is a deficient number, since it is larger than the sum of its proper divisors (1).

7678888067 is an equidigital number, since it uses as much as digits as its factorization.

7678888067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50577408, while the sum is 65.

The square root of 7678888067 is about 87629.2649004886. The cubic root of 7678888067 is about 1972.8744374177.

The spelling of 7678888067 in words is "seven billion, six hundred seventy-eight million, eight hundred eighty-eight thousand, sixty-seven".