6862772689 has 2 divisors, whose sum is σ = 6862772690. Its totient is φ = 6862772688.

The previous prime is 6862772671. The next prime is 6862772699. The reversal of 6862772689 is 9862772686.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6855840000 + 6932689 = 82800^2 + 2633^2 .

It is a cyclic number.

It is not a de Polignac number, because 6862772689 - 2¹¹ = 6862770641 is a prime.

It is not a weakly prime, because it can be changed into another prime (6862772629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3431386344 + 3431386345.

It is an arithmetic number, because the mean of its divisors is an integer number (3431386345).

Almost surely, 2^6862772689 is an apocalyptic number.

It is an amenable number.

6862772689 is a deficient number, since it is larger than the sum of its proper divisors (1).

6862772689 is an equidigital number, since it uses as much as digits as its factorization.

6862772689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24385536, while the sum is 61.

The square root of 6862772689 is about 82841.8534860248. The cubic root of 6862772689 is about 1900.3482915520.

The spelling of 6862772689 in words is "six billion, eight hundred sixty-two million, seven hundred seventy-two thousand, six hundred eighty-nine".