865678675967 has 4 divisors (see below), whose sum is σ = 989347058256. Its totient is φ = 742010293680.

The previous prime is 865678675889. The next prime is 865678675993. The reversal of 865678675967 is 769576876568.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-865678675967 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 865678675891 and 865678675900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (865678675567) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61834191134 + ... + 61834191147.

It is an arithmetic number, because the mean of its divisors is an integer number (247336764564).

Almost surely, 2^865678675967 is an apocalyptic number.

865678675967 is a deficient number, since it is larger than the sum of its proper divisors (123668382289).

865678675967 is a wasteful number, since it uses less digits than its factorization.

865678675967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123668382288.

The product of its digits is 6401203200, while the sum is 80.

The spelling of 865678675967 in words is "eight hundred sixty-five billion, six hundred seventy-eight million, six hundred seventy-five thousand, nine hundred sixty-seven".