6789561122867 has 2 divisors, whose sum is σ = 6789561122868. Its totient is φ = 6789561122866.

The previous prime is 6789561122843. The next prime is 6789561122917. The reversal of 6789561122867 is 7682211659876.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6789561122867 - 2²² = 6789556928563 is a prime.

It is a super-2 number, since 2×6789561122867² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6789561122797 and 6789561122806.

It is not a weakly prime, because it can be changed into another prime (6789561122567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3394780561433 + 3394780561434.

It is an arithmetic number, because the mean of its divisors is an integer number (3394780561434).

Almost surely, 2^{6789561122867} is an apocalyptic number.

6789561122867 is a deficient number, since it is larger than the sum of its proper divisors (1).

6789561122867 is an equidigital number, since it uses as much as digits as its factorization.

6789561122867 is an evil number, because the sum of its binary digits is even.

The product of its digits is 121927680, while the sum is 68.

The spelling of 6789561122867 in words is "six trillion, seven hundred eighty-nine billion, five hundred sixty-one million, one hundred twenty-two thousand, eight hundred sixty-seven".