7766368087 has 2 divisors, whose sum is σ = 7766368088. Its totient is φ = 7766368086.

The previous prime is 7766368081. The next prime is 7766368153. The reversal of 7766368087 is 7808636677.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7766368087 - 2²³ = 7757979479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7766368081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3883184043 + 3883184044.

It is an arithmetic number, because the mean of its divisors is an integer number (3883184044).

Almost surely, 2^7766368087 is an apocalyptic number.

7766368087 is a deficient number, since it is larger than the sum of its proper divisors (1).

7766368087 is an equidigital number, since it uses as much as digits as its factorization.

7766368087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14224896, while the sum is 58.

The square root of 7766368087 is about 88126.9997617075. Note that the first 3 decimals coincide. The cubic root of 7766368087 is about 1980.3380104335.

The spelling of 7766368087 in words is "seven billion, seven hundred sixty-six million, three hundred sixty-eight thousand, eighty-seven".