77727633163633 has 2 divisors, whose sum is σ = 77727633163634. Its totient is φ = 77727633163632.

The previous prime is 77727633163627. The next prime is 77727633163639. The reversal of 77727633163633 is 33636133672777.

It is a balanced prime because it is at equal distance from previous prime (77727633163627) and next prime (77727633163639).

It can be written as a sum of positive squares in only one way, i.e., 54778235117824 + 22949398045809 = 7401232^2 + 4790553^2 .

It is a cyclic number.

It is not a de Polignac number, because 77727633163633 - 2¹³ = 77727633155441 is a prime.

It is not a weakly prime, because it can be changed into another prime (77727633163639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38863816581816 + 38863816581817.

It is an arithmetic number, because the mean of its divisors is an integer number (38863816581817).

Almost surely, 2^{77727633163633} is an apocalyptic number.

It is an amenable number.

77727633163633 is a deficient number, since it is larger than the sum of its proper divisors (1).

77727633163633 is an equidigital number, since it uses as much as digits as its factorization.

77727633163633 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 252047376, while the sum is 64.

The spelling of 77727633163633 in words is "seventy-seven trillion, seven hundred twenty-seven billion, six hundred thirty-three million, one hundred sixty-three thousand, six hundred thirty-three".