1252684084777 has 2 divisors, whose sum is σ = 1252684084778. Its totient is φ = 1252684084776.

The previous prime is 1252684084763. The next prime is 1252684084783. The reversal of 1252684084777 is 7774804862521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 780132329001 + 472551755776 = 883251^2 + 687424^2 .

It is an emirp because it is prime and its reverse (7774804862521) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1252684084777 is a prime.

It is not a weakly prime, because it can be changed into another prime (1252684084747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626342042388 + 626342042389.

It is an arithmetic number, because the mean of its divisors is an integer number (626342042389).

Almost surely, 2^{1252684084777} is an apocalyptic number.

It is an amenable number.

1252684084777 is a deficient number, since it is larger than the sum of its proper divisors (1).

1252684084777 is an equidigital number, since it uses as much as digits as its factorization.

1252684084777 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42147840, while the sum is 61.

The spelling of 1252684084777 in words is "one trillion, two hundred fifty-two billion, six hundred eighty-four million, eighty-four thousand, seven hundred seventy-seven".