7765216793 has 2 divisors, whose sum is σ = 7765216794. Its totient is φ = 7765216792.

The previous prime is 7765216777. The next prime is 7765216817. The reversal of 7765216793 is 3976125677.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6113363344 + 1651853449 = 78188^2 + 40643^2 .

It is a cyclic number.

It is not a de Polignac number, because 7765216793 - 2⁴ = 7765216777 is a prime.

It is not a weakly prime, because it can be changed into another prime (7765216763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3882608396 + 3882608397.

It is an arithmetic number, because the mean of its divisors is an integer number (3882608397).

Almost surely, 2^7765216793 is an apocalyptic number.

It is an amenable number.

7765216793 is a deficient number, since it is larger than the sum of its proper divisors (1).

7765216793 is an equidigital number, since it uses as much as digits as its factorization.

7765216793 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3333960, while the sum is 53.

The square root of 7765216793 is about 88120.4675032991. The cubic root of 7765216793 is about 1980.2401498499.

The spelling of 7765216793 in words is "seven billion, seven hundred sixty-five million, two hundred sixteen thousand, seven hundred ninety-three".