7768116545 has 16 divisors (see below), whose sum is σ = 10758901248. Its totient is φ = 5273966400.

The previous prime is 7768116529. The next prime is 7768116547. The reversal of 7768116545 is 5456118677.

It is a happy number.

It is not a de Polignac number, because 7768116545 - 2⁴ = 7768116529 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 7768116493 and 7768116502.

It is not an unprimeable number, because it can be changed into a prime (7768116547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1095209 + ... + 1102278.

It is an arithmetic number, because the mean of its divisors is an integer number (672431328).

Almost surely, 2^7768116545 is an apocalyptic number.

It is an amenable number.

7768116545 is a deficient number, since it is larger than the sum of its proper divisors (2990784703).

7768116545 is a wasteful number, since it uses less digits than its factorization.

7768116545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2197600.

The product of its digits is 1411200, while the sum is 50.

The square root of 7768116545 is about 88136.9193074049. The cubic root of 7768116545 is about 1980.4866117697.

The spelling of 7768116545 in words is "seven billion, seven hundred sixty-eight million, one hundred sixteen thousand, five hundred forty-five".