7765056109 has 2 divisors, whose sum is σ = 7765056110. Its totient is φ = 7765056108.

The previous prime is 7765056029. The next prime is 7765056113. The reversal of 7765056109 is 9016505677.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5655491209 + 2109564900 = 75203^2 + 45930^2 .

It is a cyclic number.

It is not a de Polignac number, because 7765056109 - 2¹⁹ = 7764531821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7765056709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3882528054 + 3882528055.

It is an arithmetic number, because the mean of its divisors is an integer number (3882528055).

Almost surely, 2^7765056109 is an apocalyptic number.

It is an amenable number.

7765056109 is a deficient number, since it is larger than the sum of its proper divisors (1).

7765056109 is an equidigital number, since it uses as much as digits as its factorization.

7765056109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 396900, while the sum is 46.

The square root of 7765056109 is about 88119.5557694204. Note that the first 3 decimals coincide. The cubic root of 7765056109 is about 1980.2264908579.

The spelling of 7765056109 in words is "seven billion, seven hundred sixty-five million, fifty-six thousand, one hundred nine".