1982975342429 has 2 divisors, whose sum is σ = 1982975342430. Its totient is φ = 1982975342428.

The previous prime is 1982975342363. The next prime is 1982975342441. The reversal of 1982975342429 is 9242435792891.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1963151265625 + 19824076804 = 1401125^2 + 140798^2 .

It is a cyclic number.

It is not a de Polignac number, because 1982975342429 - 2³⁶ = 1914255865693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1982975342729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 991487671214 + 991487671215.

It is an arithmetic number, because the mean of its divisors is an integer number (991487671215).

Almost surely, 2^{1982975342429} is an apocalyptic number.

It is an amenable number.

1982975342429 is a deficient number, since it is larger than the sum of its proper divisors (1).

1982975342429 is an equidigital number, since it uses as much as digits as its factorization.

1982975342429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 78382080, while the sum is 65.

The spelling of 1982975342429 in words is "one trillion, nine hundred eighty-two billion, nine hundred seventy-five million, three hundred forty-two thousand, four hundred twenty-nine".