1764053279981 has 2 divisors, whose sum is σ = 1764053279982. Its totient is φ = 1764053279980.

The previous prime is 1764053279927. The next prime is 1764053279993. The reversal of 1764053279981 is 1899723504671.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1718314614025 + 45738665956 = 1310845^2 + 213866^2 .

It is a cyclic number.

It is not a de Polignac number, because 1764053279981 - 2²⁶ = 1763986171117 is a prime.

It is a super-2 number, since 2×1764053279981² (a number of 25 digits) contains 22 as substring.

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 (1764053239981) 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, 882026639990 + 882026639991.

It is an arithmetic number, because the mean of its divisors is an integer number (882026639991).

It is a 1-persistent number, because it is pandigital, but 2⋅1764053279981 = 3528106559962 is not.

Almost surely, 2^{1764053279981} is an apocalyptic number.

It is an amenable number.

1764053279981 is a deficient number, since it is larger than the sum of its proper divisors (1).

1764053279981 is an equidigital number, since it uses as much as digits as its factorization.

1764053279981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22861440, while the sum is 62.

The spelling of 1764053279981 in words is "one trillion, seven hundred sixty-four billion, fifty-three million, two hundred seventy-nine thousand, nine hundred eighty-one".