1982374923539 has 2 divisors, whose sum is σ = 1982374923540. Its totient is φ = 1982374923538.

The previous prime is 1982374923527. The next prime is 1982374923559. The reversal of 1982374923539 is 9353294732891.

It is a weak prime.

It is an emirp because it is prime and its reverse (9353294732891) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1982374923539 - 2¹⁶ = 1982374858003 is a prime.

It is not a weakly prime, because it can be changed into another prime (1982374923559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 991187461769 + 991187461770.

It is an arithmetic number, because the mean of its divisors is an integer number (991187461770).

Almost surely, 2^{1982374923539} is an apocalyptic number.

1982374923539 is a deficient number, since it is larger than the sum of its proper divisors (1).

1982374923539 is an equidigital number, since it uses as much as digits as its factorization.

1982374923539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 88179840, while the sum is 65.

The spelling of 1982374923539 in words is "one trillion, nine hundred eighty-two billion, three hundred seventy-four million, nine hundred twenty-three thousand, five hundred thirty-nine".