77701076693 has 2 divisors, whose sum is σ = 77701076694. Its totient is φ = 77701076692.

The previous prime is 77701076689. The next prime is 77701076729. The reversal of 77701076693 is 39667010777.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77340722404 + 360354289 = 278102^2 + 18983^2 .

It is an emirp because it is prime and its reverse (39667010777) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 77701076693 - 2² = 77701076689 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77701076623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38850538346 + 38850538347.

It is an arithmetic number, because the mean of its divisors is an integer number (38850538347).

Almost surely, 2^77701076693 is an apocalyptic number.

It is an amenable number.

77701076693 is a deficient number, since it is larger than the sum of its proper divisors (1).

77701076693 is an equidigital number, since it uses as much as digits as its factorization.

77701076693 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2333772, while the sum is 53.

The spelling of 77701076693 in words is "seventy-seven billion, seven hundred one million, seventy-six thousand, six hundred ninety-three".