1782195077473 has 2 divisors, whose sum is σ = 1782195077474. Its totient is φ = 1782195077472.

The previous prime is 1782195077371. The next prime is 1782195077539. The reversal of 1782195077473 is 3747705912871.

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., 1782136891089 + 58186384 = 1334967^2 + 7628^2 .

It is a cyclic number.

It is not a de Polignac number, because 1782195077473 - 2¹⁷ = 1782194946401 is a prime.

It is not a weakly prime, because it can be changed into another prime (1782195072473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 891097538736 + 891097538737.

It is an arithmetic number, because the mean of its divisors is an integer number (891097538737).

Almost surely, 2^{1782195077473} is an apocalyptic number.

It is an amenable number.

1782195077473 is a deficient number, since it is larger than the sum of its proper divisors (1).

1782195077473 is an equidigital number, since it uses as much as digits as its factorization.

1782195077473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20744640, while the sum is 61.

The spelling of 1782195077473 in words is "one trillion, seven hundred eighty-two billion, one hundred ninety-five million, seventy-seven thousand, four hundred seventy-three".