77147536174769 has 2 divisors, whose sum is σ = 77147536174770. Its totient is φ = 77147536174768.

The previous prime is 77147536174703. The next prime is 77147536174771. The reversal of 77147536174769 is 96747163574177.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72462315750400 + 4685220424369 = 8512480^2 + 2164537^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77147536174769 is a prime.

It is a super-2 number, since 2×77147536174769² (a number of 29 digits) contains 22 as substring.

Together with 77147536174771, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 77147536174696 and 77147536174705.

It is not a weakly prime, because it can be changed into another prime (77147536174469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38573768087384 + 38573768087385.

It is an arithmetic number, because the mean of its divisors is an integer number (38573768087385).

Almost surely, 2^{77147536174769} is an apocalyptic number.

It is an amenable number.

77147536174769 is a deficient number, since it is larger than the sum of its proper divisors (1).

77147536174769 is an equidigital number, since it uses as much as digits as its factorization.

77147536174769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1306912320, while the sum is 74.

The spelling of 77147536174769 in words is "seventy-seven trillion, one hundred forty-seven billion, five hundred thirty-six million, one hundred seventy-four thousand, seven hundred sixty-nine".