77082868853 has 2 divisors, whose sum is σ = 77082868854. Its totient is φ = 77082868852.

The previous prime is 77082868777. The next prime is 77082868861. The reversal of 77082868853 is 35886828077.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66691513009 + 10391355844 = 258247^2 + 101938^2 .

It is a cyclic number.

It is not a de Polignac number, because 77082868853 - 2³⁴ = 59902999669 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77082868873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38541434426 + 38541434427.

It is an arithmetic number, because the mean of its divisors is an integer number (38541434427).

Almost surely, 2^77082868853 is an apocalyptic number.

It is an amenable number.

77082868853 is a deficient number, since it is larger than the sum of its proper divisors (1).

77082868853 is an equidigital number, since it uses as much as digits as its factorization.

77082868853 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36126720, while the sum is 62.

The spelling of 77082868853 in words is "seventy-seven billion, eighty-two million, eight hundred sixty-eight thousand, eight hundred fifty-three".