7768340289 has 16 divisors (see below), whose sum is σ = 11516740800. Its totient is φ = 5175253728.

The previous prime is 7768340269. The next prime is 7768340299. The reversal of 7768340289 is 9820438677.

It is not a de Polignac number, because 7768340289 - 2¹⁶ = 7768274753 is a prime.

It is a super-2 number, since 2×7768340289² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7768340269) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61699 + ... + 139080.

It is an arithmetic number, because the mean of its divisors is an integer number (719796300).

Almost surely, 2^7768340289 is an apocalyptic number.

It is an amenable number.

7768340289 is a deficient number, since it is larger than the sum of its proper divisors (3748400511).

7768340289 is a wasteful number, since it uses less digits than its factorization.

7768340289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202221 (or 202215 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 54.

The square root of 7768340289 is about 88138.1885960904. The cubic root of 7768340289 is about 1980.5056261490.

The spelling of 7768340289 in words is "seven billion, seven hundred sixty-eight million, three hundred forty thousand, two hundred eighty-nine".