7806678067 has 12 divisors (see below), whose sum is σ = 8255194056. Its totient is φ = 7381427040.

The previous prime is 7806678059. The next prime is 7806678083. The reversal of 7806678067 is 7608766087.

It is a happy number.

It is not a de Polignac number, because 7806678067 - 2³ = 7806678059 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7806677999 and 7806678017.

It is not an unprimeable number, because it can be changed into a prime (7806678097) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 167328 + ... + 208834.

It is an arithmetic number, because the mean of its divisors is an integer number (687932838).

Almost surely, 2^7806678067 is an apocalyptic number.

7806678067 is a deficient number, since it is larger than the sum of its proper divisors (448515989).

7806678067 is a wasteful number, since it uses less digits than its factorization.

7806678067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42066 (or 42047 counting only the distinct ones).

The product of its (nonzero) digits is 4741632, while the sum is 55.

The square root of 7806678067 is about 88355.4076839669. The cubic root of 7806678067 is about 1983.7582995367.

The spelling of 7806678067 in words is "seven billion, eight hundred six million, six hundred seventy-eight thousand, sixty-seven".