766535064314077 has 2 divisors, whose sum is σ = 766535064314078. Its totient is φ = 766535064314076.

The previous prime is 766535064314009. The next prime is 766535064314101. The reversal of 766535064314077 is 770413460535667.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 570501154847556 + 196033909466521 = 23885166^2 + 14001211^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-766535064314077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (766535064314177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 383267532157038 + 383267532157039.

It is an arithmetic number, because the mean of its divisors is an integer number (383267532157039).

Almost surely, 2^{766535064314077} is an apocalyptic number.

It is an amenable number.

766535064314077 is a deficient number, since it is larger than the sum of its proper divisors (1).

766535064314077 is an equidigital number, since it uses as much as digits as its factorization.

766535064314077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 266716800, while the sum is 64.

The spelling of 766535064314077 in words is "seven hundred sixty-six trillion, five hundred thirty-five billion, sixty-four million, three hundred fourteen thousand, seventy-seven".