769063116781 has 2 divisors, whose sum is σ = 769063116782. Its totient is φ = 769063116780.

The previous prime is 769063116749. The next prime is 769063116803. The reversal of 769063116781 is 187611360967.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 561255688900 + 207807427881 = 749170^2 + 455859^2 .

It is an emirp because it is prime and its reverse (187611360967) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 769063116781 - 2⁵ = 769063116749 is a prime.

It is a super-2 number, since 2×769063116781² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (769063116721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 384531558390 + 384531558391.

It is an arithmetic number, because the mean of its divisors is an integer number (384531558391).

Almost surely, 2^769063116781 is an apocalyptic number.

It is an amenable number.

769063116781 is a deficient number, since it is larger than the sum of its proper divisors (1).

769063116781 is an equidigital number, since it uses as much as digits as its factorization.

769063116781 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2286144, while the sum is 55.

The spelling of 769063116781 in words is "seven hundred sixty-nine billion, sixty-three million, one hundred sixteen thousand, seven hundred eighty-one".