7040779169 has 2 divisors, whose sum is σ = 7040779170. Its totient is φ = 7040779168.

The previous prime is 7040779157. The next prime is 7040779217. The reversal of 7040779169 is 9619770407.

It is a happy number.

7040779169 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5687422225 + 1353356944 = 75415^2 + 36788^2 .

It is a cyclic number.

It is not a de Polignac number, because 7040779169 - 2¹⁶ = 7040713633 is a prime.

It is a super-2 number, since 2×7040779169² = 99145142613248661122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7040779129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3520389584 + 3520389585.

It is an arithmetic number, because the mean of its divisors is an integer number (3520389585).

Almost surely, 2^7040779169 is an apocalyptic number.

It is an amenable number.

7040779169 is a deficient number, since it is larger than the sum of its proper divisors (1).

7040779169 is an equidigital number, since it uses as much as digits as its factorization.

7040779169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 666792, while the sum is 50.

The square root of 7040779169 is about 83909.3509032217. The cubic root of 7040779169 is about 1916.6386471451.

The spelling of 7040779169 in words is "seven billion, forty million, seven hundred seventy-nine thousand, one hundred sixty-nine".