6597778867 has 2 divisors, whose sum is σ = 6597778868. Its totient is φ = 6597778866.

The previous prime is 6597778807. The next prime is 6597778903. The reversal of 6597778867 is 7688777956.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6597778867 - 2¹¹ = 6597776819 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6597778796 and 6597778805.

It is not a weakly prime, because it can be changed into another prime (6597778807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3298889433 + 3298889434.

It is an arithmetic number, because the mean of its divisors is an integer number (3298889434).

Almost surely, 2^6597778867 is an apocalyptic number.

6597778867 is a deficient number, since it is larger than the sum of its proper divisors (1).

6597778867 is an equidigital number, since it uses as much as digits as its factorization.

6597778867 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 248935680, while the sum is 70.

The square root of 6597778867 is about 81226.7127674141. The cubic root of 6597778867 is about 1875.5670099796.

The spelling of 6597778867 in words is "six billion, five hundred ninety-seven million, seven hundred seventy-eight thousand, eight hundred sixty-seven".