7768060813 has 4 divisors (see below), whose sum is σ = 7836804828. Its totient is φ = 7699316800.

The previous prime is 7768060753. The next prime is 7768060823. The reversal of 7768060813 is 3180608677.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3180608677 = 3677 ⋅865001.

It can be written as a sum of positive squares in 2 ways, for example, as 3581064964 + 4186995849 = 59842^2 + 64707^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7768060813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7768060823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34371838 + ... + 34372063.

It is an arithmetic number, because the mean of its divisors is an integer number (1959201207).

Almost surely, 2^7768060813 is an apocalyptic number.

It is an amenable number.

7768060813 is a deficient number, since it is larger than the sum of its proper divisors (68744015).

7768060813 is a wasteful number, since it uses less digits than its factorization.

7768060813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68744014.

The product of its (nonzero) digits is 338688, while the sum is 46.

The square root of 7768060813 is about 88136.6031396718. The cubic root of 7768060813 is about 1980.4818754546.

The spelling of 7768060813 in words is "seven billion, seven hundred sixty-eight million, sixty thousand, eight hundred thirteen".