1982542321783 has 2 divisors, whose sum is σ = 1982542321784. Its totient is φ = 1982542321782.

The previous prime is 1982542321763. The next prime is 1982542321817. The reversal of 1982542321783 is 3871232452891.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1982542321783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1982542321763) 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, 991271160891 + 991271160892.

It is an arithmetic number, because the mean of its divisors is an integer number (991271160892).

Almost surely, 2^{1982542321783} is an apocalyptic number.

1982542321783 is a deficient number, since it is larger than the sum of its proper divisors (1).

1982542321783 is an equidigital number, since it uses as much as digits as its factorization.

1982542321783 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5806080, while the sum is 55.

The spelling of 1982542321783 in words is "one trillion, nine hundred eighty-two billion, five hundred forty-two million, three hundred twenty-one thousand, seven hundred eighty-three".