7790761669 has 2 divisors, whose sum is σ = 7790761670. Its totient is φ = 7790761668.

The previous prime is 7790761661. The next prime is 7790761703. The reversal of 7790761669 is 9661670977.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7201728769 + 589032900 = 84863^2 + 24270^2 .

It is a cyclic number.

It is not a de Polignac number, because 7790761669 - 2³ = 7790761661 is a prime.

It is a super-2 number, since 2×7790761669² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7790761661) 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 as a sum of consecutive naturals, namely, 3895380834 + 3895380835.

It is an arithmetic number, because the mean of its divisors is an integer number (3895380835).

Almost surely, 2^7790761669 is an apocalyptic number.

It is an amenable number.

7790761669 is a deficient number, since it is larger than the sum of its proper divisors (1).

7790761669 is an equidigital number, since it uses as much as digits as its factorization.

7790761669 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6001128, while the sum is 58.

The square root of 7790761669 is about 88265.2914174082. The cubic root of 7790761669 is about 1982.4092080377.

The spelling of 7790761669 in words is "seven billion, seven hundred ninety million, seven hundred sixty-one thousand, six hundred sixty-nine".