1782960630881 has 2 divisors, whose sum is σ = 1782960630882. Its totient is φ = 1782960630880.

The previous prime is 1782960630817. The next prime is 1782960630907. The reversal of 1782960630881 is 1880360692871.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1124785392481 + 658175238400 = 1060559^2 + 811280^2 .

It is a cyclic number.

It is not a de Polignac number, because 1782960630881 - 2⁶ = 1782960630817 is a prime.

It is a super-2 number, since 2×1782960630881² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1782960630881.

It is not a weakly prime, because it can be changed into another prime (1782960636881) 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, 891480315440 + 891480315441.

It is an arithmetic number, because the mean of its divisors is an integer number (891480315441).

Almost surely, 2^{1782960630881} is an apocalyptic number.

It is an amenable number.

1782960630881 is a deficient number, since it is larger than the sum of its proper divisors (1).

1782960630881 is an equidigital number, since it uses as much as digits as its factorization.

1782960630881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6967296, while the sum is 59.

The spelling of 1782960630881 in words is "one trillion, seven hundred eighty-two billion, nine hundred sixty million, six hundred thirty thousand, eight hundred eighty-one".