7766730493 has 2 divisors, whose sum is σ = 7766730494. Its totient is φ = 7766730492.

The previous prime is 7766730487. The next prime is 7766730509. The reversal of 7766730493 is 3940376677.

7766730493 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7697956644 + 68773849 = 87738^2 + 8293^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7766730493 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7766730493.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7766730443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3883365246 + 3883365247.

It is an arithmetic number, because the mean of its divisors is an integer number (3883365247).

Almost surely, 2^7766730493 is an apocalyptic number.

It is an amenable number.

7766730493 is a deficient number, since it is larger than the sum of its proper divisors (1).

7766730493 is an equidigital number, since it uses as much as digits as its factorization.

7766730493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4000752, while the sum is 52.

The square root of 7766730493 is about 88129.0558953175. The cubic root of 7766730493 is about 1980.3688131290.

The spelling of 7766730493 in words is "seven billion, seven hundred sixty-six million, seven hundred thirty thousand, four hundred ninety-three".